Note: This story was dynamically reformatted for online reading convenience.
 
 But, I'm not gay!  (This story: MM, MF, office, 1st time gay.)

   "I'm not gay!" he gasped as I sunk the last inch of my thick cock into
his ass.  Bent over the sink in the medical office bathroom and holding
onto the handicap rails with white-knuckled fervor, he almost sounded
convincing except I could see his hard -on poking out from under his scrub
top in the mirror and feel him twitching his hips against mine.

   I snickered and started to pull out of his pale muscular ass only to
thrust back into his hot guts.  He grunted, closed his eyes and turned his
head to the side.  James-Jimmy around the office-was a medical assistant
right out of tech school and I was old enough to be his father.

   *****

   I'm not gay.  I've always been a little curious, but I never-not even
once-acted on it.  I love pussy, especially the smell of it, and have a
thing for tits.  So, I honestly was a bonified straight man.  I've had the
family and the divorce then had the opportunity to go back to school and
learn what I wanted.  This is why I was working part time in the medical
office Jimmy was.

   I registered him as an attractive guy-my height, not a muscle head,
clean-cut-but a bit young and wet behind the ears.  I'd done some time in
the service-as a medic-so I could have asked for his job but I was happier
working front office and admin.  Most of the staff-other than two of the
five doctors-was women and most of them were older, like me, so Jimmy and I
started chatting as a means of solidarity when he was between appointments.

   Because of my being part-time, I spent a lot of time in the records room
tucked in behind rows of shelves with the busy practice's last five years
of records.  Jimmy would come back, lean against the shelf and talk.  I'm a
bit of a sexophile, so it didn't take long for the subject to go that way.

   It's ironic, in a way, because the first time it happened; I noticed he
started blushing when I mentioned my ex-wife got off on anal sex.  I was
about to back off of the subject when I noticed-courtesy of being seated at
almost crotch level to him-his cock started to print in his thin scrubs.

   "Never thought a woman would like that?" I asked.

   "I...  Wouldn't it hurt?"

   "Not if there's enough lube and you take your time with it." I said.

   "I couldn't do that...  do that to a woman."

   "You could to a guy though?" I asked, teasing.

   "I'm not gay." He stated and looked away.

   "What if your girlfriend asked you to?"

   "I don't have one."

   "Okay, hypothetically?"

   "I don't know." He answered in a tone that screamed "I've never had
one." I laughed a little.  "You're going to need to deal with that before
you get back to work." I said, looking pointedly at his bulge.

   Jimmy looked like a scared cat.  "I..."

   "Go into the changing room and take care of it.  We've only got female
docs on today.  Nobody but me would go in there.  Take some Surgi-Lube and
make a date of it." He was positively crimson.  His discomfort started to
make my cock uncomfortable in my pants.

   "I've never done that at work." He whispered.

   Perversely, I think he got even harder from how much he was tenting now.
I still don't know exactly why-whether kink or empathy-I stood up and told
him to come with me.

   The changing rooms-there were two-were in the back of the office and
separated by sex.  They had a wall of lockers, a cot for the doctors to
sleep on when they were on call from the hospital across the street, and a
separately walled off toilet and shower.  We didn't usually turn on the
overhead lights, instead using a small covered lamp over the sink.

   I walked into the changing room, turned to find Jimmy sneaking behind
me. I think he was worried one of the women would see his state.  I pulled
him into the room and pushed the door closed behind him.

   "You should probably be quiet about it, but-"

   "You want me to just pull it out and...?" he hissed.

   "You do jerk off, right?"

   He nodded and looked away.

   "You stay here and get comfortable, I'll get you some lube." I said and
walked back out.  I went to the closest exam room and opened the drawer
with basic supplies.  We used Surgi-Lube, essentially a sterile KY
Jelly-for rectal temperatures when needed.  It came in a tin tube like
toothpaste almost.  This one wasn't stocked with it right now.  So, I went
to one of the other rooms and got the tube.

   I didn't knock on the door, just walked in.  When I told Jimmy to get
comfortable, I hadn't expected him to actually start.  I walked in to find
him stripped naked on the cot with his knees spread stroking one out.  He
startled when I came in and froze mid-stroke.

   The first think I thought was he had a nice cock.  It wasn't too
long-only about six-and-a-half or seven inches, but it was pretty sturdy
looking and the head looked it was meant for a larger cock.  He seemed to
stop with his hand just under the head.  The balls that hung under it were
red-even in the dim light of the lamp-and pretty big.  His shocked face was
priceless.

   "I told you I was coming back." I said and held up the lube.

   "I...  I...  I..." He stammered.  "I don't usually use it."

   I nodded and stashed it in my locker.

   Then I left him alone and went back to my desk, hoping no one would
notice the bulge in my pants.  As I sat there, I tried to decide whether or
not to go give myself some relief until Jimmy came out.  He walked by my
door wordlessly.  After about an hour of suffering, I took my own break in
the changing room and I did use lube.

   I wasn't too surprised when the image of Jimmy in the same position came
to mind as I came.

   *****

   Jimmy was a little stand-offish for a few days.  I acted like I didn't
notice until we passed each other in one of the hallways and he looked down
and away when he walked by.  I'm not exactly sure why, but when he passed,
I reached out and swatted his ass.

   I was surprised at the charge I got out of that, but not as surprised as
when Jimmy stopped short, faced me, and looked like he was about to say
something cross.  Instinctually, I squared off with him and drew up to my
full height.

   He seemed to back down then look at me sideways.  Finally, he turned
around to go and-I swear, I did it without thinking-swatted his ass again.

   He faced me again, with an almost pained look, and then looked at my
feet.

   I glanced down and-there it was again-he was tenting his scrubs.  It hit
me then why he was avoiding me.  I let him walk away unmolested, but I kept
an ear out for him.  A few minutes later, I heard someone go by the door to
the records room and then the door to the men's changing room opened with
its distinctive squeak.  I thought a moment, waited a few minutes more, and
then headed back on break.

   I opened the door and walked right in to find Jimmy stripped naked again
on the cot with cock in hand.  He looked at me, I looked at him and let the
door close behind me.

   "Thought you didn't do that at work?" I sneered.

   He jumped up off the cot and started reaching for his scrubs on the
floor.  I took one step towards him, grabbed his bare hip with my left hand
as I swatted his firm ass with the right.  He stood up straight, reaching
for his ass with both hands.  His cock stuck almost straight out.

   "Why'd you do that?"

   I laughed.  "Because you're not being honest."

   "I hadn't before!"

   "You've also been avoiding me." I said, looking at his hard on.  "And
you can't go back to work in that state."

   He looked away from me and tried to turn away.  I felt a little-I'm not
sure-frustrated and powerful.  I actually reached out with my left hand and
grabbed his penis.  He jumped and his head snapped toward me.  I put my
right hand on the middle of his back and stared into his eyes.  His eyes
darted left and right but his penis just throbbed and twitched in my hand.

   I cannot tell you how powerful I felt at that moment.  I could say I had
him by the balls, but...  You can get it.

   I let go of his cock and he seemed to sigh a relief until I held my hand
in front of his mouth.  "Spit on it." I told him.

   "What?"

   "Spit on my hand." I told him in no uncertain terms.

   He did, half-heartedly.  Just a dribble or two got on my palm.  I
smeared it around with my fingers then told him "More." He did a passable
job this time and I had a moist hand when I stepped in closer to him and
wrapped my hand back around his shaft.  He looked into my eyes and I said
"You can't go back to work this way."

   I started jacking him off.  His mouth dropped open like he was going to
say something, but instead he seemed to cough and grunt at the same time.

   It was different, the angle, the thinner size of his shaft, and the
bell-end that literally kept my hand from flying off the end, but it was
seriously a turn on.  Jimmy started gasping and dancing around as I tugged
his cock for him.  I had to press my body to his side and hold him tight to
me with my right arm to stop him from getting away.  He had to feel my
prick against his thigh.

   It only took minutes and the young man gasped loudly and I felt his cock
throb in my hand.  I looked down and saw his first stream of cum arc out
and hit the tile wetly.  He seemed to melt as I kept stroking him, turning
into me and putting his face into the side of my neck.

   He softened and I stopped stroking, just milking the last out of his
penis onto the floor.

   He was breathing softly into my shoulder.

   I was rock hard, turned on, ready to fuck, but I let go of his penis and
wrapped both arms around him.

   I think he was crying.

   The knock on the door had really lousy timing.

   "Jimmy, are you in there?  The 1:15 is going to be a few minutes late."
Estelle said a little loudly.

   "Got it." Jimmy said, more into my shoulder than toward the door.

   "You owe me one." I whispered to him, pointedly pressing my hard-on
against him.  "You need to get dressed."

   *****

   Jimmy didn't avoid me after that, but he was pretty stand-offish and
skittish.  With the male doctors on and a busy week, nothing happened and
we didn't really talk much for a few days.  My home-life-as it was, living
in dorms-was quiet and school was distracting.

   However, the next Friday was an odd day for the office.  No doctors were
in-they were at a conference out of town-and only mandatory admin was on.
Usually Jimmy wouldn't be there as would the other medical assistants, but
he was tasked with restocking and signing and accounting for a large
medical supply shipment coming in that afternoon.

   Estelle, the plump-assed Hispanic office manager-kept everyone busy
until lunchtime but then all the women in the office were heading to a baby
shower for a woman in the next office.  I was tasked to be on hand to sign
out records for emergency appointments until the end of the day when
Estelle would be back to lock up.

   The supply shipment showed just before the girls left and after helping
the driver unload the boxes, Jimmy was out of sight in the supply room.

   As soon as Estelle locked that office, I had a hard on and a prey in
mind.

   I bounced the phone line to ring all the phones and stood up.  I walked
back to the supply room to find Jimmy on his knees scanning boxes with a
barcode reader.  He looked up at me and I know the smile I had was probably
more a sneer.

   "Jimmy, I've had a bit of a long week and I'm going to collect what you
owe me."

   "Wha-what do I owe you?" he asked.

   I laughed and stepped closer to him.  Reaching down and taking the back
of his dirty blond haired head, I pressed his face toward my pants-trapped
cock.  I felt his cheek through the khakis and felt when he coughed.

   "I'm not gay." He said in an odd tone.

   I leaned to the side and looked down toward the young man's crotch. 
Sure enough, there was a tent.  I laughed, "That's fine, neither am I, but
I bet this'll feel good."

   He looked up at me with wide eyes, almost innocent looking.

   "Changing room.  Five minutes.  Make sure the doors are locked."

   I left him there and went to the changing room.  I knew-as I took my own
clothes off and neatly folded them on the small table in the corner-that
Jimmy could get me in massive trouble if he called someone right now.  I
also knew he could just leave.  I don't know why, but I knew he wouldn't.

   I grabbed the lube from my locker and paused to look at myself in the
mirror.

   Sometimes I didn't recognize myself naked because I was still-in my
mind-the younger, thinner man of my youth.  I wasn't fat, other than my
cock, but I had gotten the broad shoulders and stockiness of an adult man.
I didn't look as muscular as I would have liked, but I could handle my own
and I really liked the look of myself down low.

   All of my lovers-all women so far-liked the upward curve and thickness
of my cock.  I wasn't unusually long, only six-and-a-half inches, and it
looked smaller in my own, large meaty paws, but I loved how it looked
inside a woman and got a secret joy when they were sore and satisfied the
next day.

   I wondered how it would look in Jimmy.

   I sat on the cot, leaned back and waited.  At the four minute mark, I
heard tentative footsteps outside the door.  I knew he was there.  I could
have told him to come in, make the wait less, but instead I waited-teasing
myself in a way.

   When I thought it was time, I sat up a little to tell him to come in but
he beat me to it.

   He saw me naked and he paused.

   "What-what do you want me to do?" he said quietly.

   I looked him up and down, idly touching my cock.  His hard-on was
obvious.  "Take your scrubs off.  No need to get messy."

   "I..." he started, but turned away and started pulling the top off over
his head.

   "Face me." I said in a pleasant tone.

   He did and I swear, watching the blushing young man strip off his
clothes and reveal a prick as hard as mine was a serious turn on,
especially when he tried to hide it with his hands.

   "Kneel." I said.  He did, at first upset, but then he realized he could
tuck his penis between his thighs in this position.  On principle, I
considered telling him not to, but I got distracted looking at his mouth.
"Relax, Jimmy.  You're just helping a buddy out."

   "I'm not gay." He said, looking down and then up from under his
eyebrows.

   I reached out and touched his arm with a hand and ran my hand down the
arm.  I was wondering if I was going to have to literally hold his hand,
until his arm seemed to come up just by touch.  I took hold of his wrist
and sat up.  My prick normally points a little up from the base when I'm
hard and it was pointing straight at Jimmy's mouth.  I put his hand at the
base of my cock.  His touch was almost electric, I swear I wanted nothing
more at that moment than to shoot my cum all over his face.

   His eyes came up, seeming to notice my prick for the first time. 
Standing thick and proud from a trimmed red-brown bush.

   "I don't know what to do." He whispered.

   I laughed.  "Stroke me.  I like things wet.  Use spit on your hands...
or your mouth." I said quietly.  When I said "mouth", his mouth opened and
it gave me a thrill.  "I love my balls kissed and licked...  especially
after I come.  Take your time and I'll tell you then you're doing well."

   He nodded, still staring at my cock inches from his face.

   I let go of his hand and leaned back on my elbows to watch.

   He tilted his head so as to look at my cock from both sides, choosing an
avenue of approach.  I felt his grip tighten around the base, and then he
spat on the head.

   The spit instantly cooled, giving me goose bumps.  He looked up into my
eyes, looked down, and then closed them while leaning in with an open
mouth.

   When his lips caught the head of my cock, I groaned.  When he got the
head into his mouth, I felt how dry it was until his tongue swirled around
the head.

   "That-Jimmy-is doing well."

   I'm not a quick shooter and the boy was a bit of an amateur, but in the
half-hour it took him to pump my cum out of my balls and into his mouth, it
was a hell of an enjoyable learning experience.  He even licked my tight
balls after I came.  I was groaning with pleasure until the very end.  When
I was done, exhausted, and happy, I sat up, smiled down at him and his dark
purple cock leaking precum everywhere.

   I was tempted to give sucking him off a try, but all it took was a
simple grip and he was frantically and spasmically pumping my hand and
greasing the palm with his own cum.  When he finished, I squeezed his soft
cock and used my other hand to tilt his head back so we were face to face.

   His face flashed happiness for only a split second and then forced
disappointment.  I swear, I think it was a game he was playing.  I brought
my hand up in front of his face, the wrist and palm covered in his cum.

   "Lick." I said.  He did, cleaning the palm.  What he didn't see was my
curiousity getting the better of me, and me tasting what he'd left on my
wrist.  I was hooked.

   "You owe me one...  again." I said, smiling when he finished my hand.

   I left him there and went to take a shower.  I hoped he might join me
because I was getting turned on again by him.  Maybe it was the power I had
over him, the kinkiness.  I don't know.  All I did know was almost as soon
as I got dressed and out, some of the girls filtered back in from the
shower and I didn't get to talk to Jimmy that afternoon.

   *****

   For a week, Jimmy and I shared looks in the hall and he didn't seem to
avoid me but he was wrapped up inside it seemed.  When no one was looking,
I'd slap his ass lightly as I passed and he seemed to perk up when I did
it. I really got the feeling he enjoyed the attention.  At the end of the
week, one of the doctors had to cancel some appointments because of an
emergency on-call surgery, and it left Jimmy with extra time to restock the
rooms.

   One of the rooms the office had was specifically for an ultrasound and
was usually only used by appointment.  While the other MA's stocked the
normal rooms, Jimmy was inventorying and stocking the ultrasound room and
replacing the roll of paper on the exam table when I walked in.  Because
the exam table was against the wall, he was on top of the bed reaching down
behind when I walked in.

   He didn't glance back, so I walked over, reached out to swat his
muscular butt, but stopped.  I groped it instead, kneading the cheeks.

   Jimmy's head popped up and he looked back at me.

   "I..."

   I laughed, still kneading his cheeks.  "You say that a lot."

   He tried to sit up, and I swatted his ass to make him stay.

   "You look good that way.  I'm normally straight, but you've got a cute
ass." I said, returning to kneading his cheeks and upper thighs.  I felt
him arch his back a bit, taking pressure off of his probably growing prick.

   "I'm not gay." He repeated.

   I started to dig my fingertips in between his cheeks.  I'd never fucked
a guy in the ass, but I really enjoyed buggering my ex-wife and
ex-girlfriends.  Something about the muscularity of it and the naughtiness
of it.  It was only a few seconds before I was lightly pressing my fingers
into his anus through his thin scrubs and boxers.

   "That would hurt." Jimmy said as an answer to an unasked question.

   "That's what lube is for." I said.

   He tried to push up more and I increased the pressure of my fingertips.
He didn't push back further or let himself back down.

   "Maybe you should try a little." I said, looking around and setting eyes
on the squeeze bottle of ultrasound gel.  I reached under him between his
legs, feeling his hard on along my forearm and making him groan as I found
the tie to his pants and loosened them.

   "We're going to get caught." He said, but didn't stop me as I tugged his
scrub pants and boxers down over his hips.  I found myself facing his
tightly packed muscular ass.  Under the bright, sterile lights I could see
the wisps of hair between the cheeks and the un-sunned tan coloring around
his crinkled anus along with the short hairs on his loose ball skin.  I was
still sporting wood as I reached for the bottle of gel.

   I reached under and grabbed his ever-hard cock.  "This might be a little
cold." I told him as I squirted some of the gel onto his anus.  It winked
at me, the outer sphincter relaxing then pressing back closed.  "Relax." I
told him and ran the tips of my index and middle finger through the cold
gel and then started massaging his anus.

   Jimmy gasped then groaned as my slow, gooey pressure worked his anus
into relaxation.  The throb of his cock in my hand told me he enjoyed it as
his outer ring opened wide for me, leaving his inner ring open for my
assail.  He started humping my hand as it opened, but I held my hand in one
position, denying him that pleasure.

   He arched his back, now on widespread knees, as his inner ring opened to
my well-lubed fingers.  I folded my index finger back leaving the middle
finger and worked it into the young man's asshole.  He grunted and tried to
hump my hand even more.

   I worked my thick finger into his ass until my knuckles were against his
ass cheeks.  "See why a woman might like it?" I asked.

   "Yes." He gasped.

   "You'll owe me a big one." I warned him.

   He whimpered and whispered "I know."

   I started methodically working my middle finger in and out of his ass
and he pushed back higher.  Then I let go of his cock, spit loudly into my
hand, and I felt his asshole spasm and his body shiver.  He even sighed in
the split second before my hand rewrapped his cock and started jacking.

   I think he held his breath because he was dead silent as his ass went
into overdrive on my finger, his balls turned red and crinkled into a
swollen lump, and his cock exploded all over the paper on the table, the
front of his scrubs, and the back of my hand.

   I seriously wanted to lick his balls for some reason.

   It was over too soon though and he was a bit of a mess.  I laughed as I
pulled my finger from his ass and grabbed a paper towel.  He was breathing
hard as I cleaned him up.  When he sat up on his knees to pull his pants
up, we both saw he'd unloaded a lot of his cum into the front of his scrub
top with the rest on the clean paper covering the exam table.

   "You need a clean scrub top out of your locker.  I'll clean this up." I
told him.

   His face was carefully neutral, but his eyes-they were beaming.

   After the ride my finger got, I decided I wanted my cock in him, and
soon.

   "You owe me a big one." I reminded him as he snuck back to the changing
room for a clean scrub top.  I looked at the cum on the paper and, before I
knew what I was doing, leaned over and tongued a bunch of it, savoring it.
I was in trouble.  Before I could go back to work, I had to unload my own
balls, thinking of Jimmy's ass.

   *****

   We had a fast week, I think both of us seemed to know what was going to
happen and Jimmy seemed to go from ambivalent to excited on a daily basis.
I watched him and waited for an opening-literally-until I overheard one of
the office girls tell another about getting her ashes hauled in one of the
restrooms in the hallways of the building.  Unlike most buildings, our
medical office building was expected to handle handicap people and the
bathrooms were large, rarely used, and equipped with railings.

   I had a plan.

   When Jimmy saw me, I think he knew what I was thinking of, and just
before lunchtime, when everyone was finishing business to make sure we had
our time, I searched Jimmy out.  He was in an exam room, putting dressings
in the cabinet above the sink when I walked in and walked right up behind
him.

   He jumped a little as I pressed my broader frame against his and my
semi-hard cock against his ass.  I wrapped my arms around him and put my
hands on the front of his pelvis-either side of his cock and balls-and
pressed him into me.

   Almost as fast, he relaxed into my embrace.

   "That one you owe me?" I whispered into his ear.

   He nodded.

   "Meet me in the corridor outside suite 506 as soon as we go to lunch." I
kissed his neck and he shivered.  "Bring lube."

   With that, I let him go, walked out, and literally dodged him for the
next 15 minutes until lunch.  If it wasn't for everyone distracted by lunch
and the fact Jimmy had worn tighty-whiteys to keep his prick in check a bit
more, it would have been obvious he was ready to go.

   Seven minutes into our lunch hour, Jimmy was bent over a long, low
handicapped sink holding onto the handicap rails and gasping as I worked
his tight, virgin asshole open with my fingers.  Four minutes later, I had
my thick cock finally planted in his asshole.

   *****

   As I thrust into his ass, I couldn't believe how far I'd gone in just a
few weeks.  I should feel bad, I thought, as I rode him and he blushed and
grunted, but when he started humping his ass back in time with my thrusts,
I knew he was really enjoying this.  The slick noise of his asshole taking
me in and letting me out again was hypnotic and almost as arousing as the
feel of heat inside him and the muscular grip of his anus on my thickness.
I stared down at his muscular ass as I penetrated him, my hands grasping
his waist high enough to let him freely rock his hips into my rhythm.  When
he started gasping, I looked up into the mirror to see him staring at my
reflection with a mottled red and white face.

   The boy was loving every thrust and we locked eyes.

   I felt my balls rise.  I was going to come soon.

   Jimmy had the most beautiful blue eyes.  I hadn't really registered that
before.  They were staring back at me from the mirror.  It almost felt like
he was the one in charge.

   The slapping of my hips against his ass sounded like it was loud enough
to hear down the hall.  I think the loudness drove me higher.

   The burning in my balls and the head of my cock that told me coming was
inevitable got more intense.  I set my jaw, picked up the rhythm, and
pumped his hot ass for all I was worth.  I swear to god, Jimmy arched his
back and got onto his tip-toes to take it and then I was growling and
pumping my cum into his hot ass.

   I can't describe the sounds he made over the sound of my pulsing blood
in my own ears, but it was a turn-on.  And-as my rush began to fade-his
asshole throbbed on my prick.

   When I could think straight again, I was standing there, holding his
hips but my cock had softened and left his ass.  He sort of slumped over
the sink, his head in his arms.  I looked down at the floor in front of him
and there was a pool of cum on the tiles that made me jealous.

   I sighed and reached for a paper towel, wiping the lube away from his
red anus and then another to clean my cock.  I tossed them away and put my
hand on his back.  I couldn't tell if he was crying.

   "I'm not gay." He said into his arms and echoing in the sink.

   I laughed.  "I'm not gay either."