Note: This story was dynamically reformatted for online reading convenience.
 
 On Friday we all went straight to the back of the room and stripped.

   It was weird.  We all knew we had to do it.  We had all done it once
before.  We had all seen each other nude.  But somehow simply walking in
and undressing at school was so unnatural.

   Nevertheless, by the time the bell rang we were all sitting in our
seats, totally nude.  We were all too self conscious to be standing around.
Somehow if we were seated we felt covered.

   Ms Thompson strode in right on time, as usual.  She slipped off her robe
and hung it up.

   "Alright class.  Today we will measure each others bodies.  To do this
we need to go to the Biology lab.  Please bring your notebook and leave
your other things here.  I'll lock the door to protect your valuables. 
Please follow me."

   "I can't go out there like this!" a blond behind me screamed.

   "Of course you can," replied Ms Thompson.  "It's a beautiful morning. 
The sun is shining.  And we don't have any of the instruments here.  Come
along!"

   With that she opened the door and waited for us to join her.

   None of us moved for a moment.  Then one man stood up and walked down.
Then a girl.  Another guy.  I got up and walked down.  And then we all
joined her.  Even the girl behind me.

   Stepping out into the hallway was the hardest thing I've ever done.  I
didn't know what to do with my hands.  Do I cover my breasts or my pussy? I
had shaved it bald last night, so everything was visible.  Or do I simply
pretend I'm dressed?

   I looked around.  All the guys had their notebooks rather strategically
placed.  They were so lucky.  Most of the girls seemed to be as undecided
as I was.

   I decided that if I was going to make it in this class I was going to
have to force myself to act as normally as possible.  With a surge of
determination I put my notebook under my arm, but my hands to my side, and
began following Ms Thompson.

   Imagine what you would do if you were on an average college campus and
thirty nude men and women came strolling past.

   I felt like I was in a damn parade!  Literally everything stopped as we
walked by!  People stopped walking.  Stopped talking.  Stopped eating.  One
guy dropped his drink and spilled coke all over the hallway!  Looking back
on it, it was sort of funny.  Going through it was terrifying.

   I've never felt more embarrassed.  More visible.  I felt like crying. 
Felt like turning and running for the nearest cover.  Two days ago I let a
group of strangers see me nude for the first time.  Now I was on display
for the entire world to see.

   I bit my lip and kept walking.  Ms Thompson simply strode on as though
she were dressed in a business suit.

   The Biology building was half way across campus.  We had to go
downstairs, outside, across a major street, through an outdoor commons
area, into the biology building, downstairs to the basement, and down the
hall to lab 114.

   I don't know how many people saw us.  There was almost a wreck when we
crossed the street!  The commons area became deathly quiet as we walked
through!  People didn't know how to react.  They just stared.

   When we finally got to the lab, we all groaned.  Lab 114 had a glass
wall!  The only lab with a glass wall!  This lab was set up so that people
in the hallway could see in at what was going on.  The whole front wall was
a window!

   Some of the older students had been worried about this as they came
over. Being a freshman, I'd never had a biology lab and didn't have a clue.

   We rushed inside.  Somehow we felt a little more covered.  But not much.

   Ms Thompson went to the front of the room.

   "Class.  Today you will be measuring each others bodies.  Please pay
attention while I read off your lab partners for this morning."

   It turns out one other girl had dropped, so there was an even number of
guys and girls.  I was paired with a Sophomore named Steve.

   "OK class.  Take a place at one of the tables.  All the necessary
instruments are laid out at each table.  Here are your instructions.  I
suggest you take turns and do each other at the same time.  One rule: you
cannot measure yourself.  The other person must perform each measurement."

   Steve and I nervously looked around.  Somehow we'd been paired towards
the end of the group.  That means we were the last to find a seat.  Guess
what seat was left!  Right by the huge window.

   We sat down and looked at the instructions.  I was afraid to read the
whole thing, so we just started on number 1.

   Weight.  We went to the scales.  I was 98.  Steve was 179.
Height: 5'0".  Steve: 5'11".

   Arm length from tip of finger to shoulder.

   Arm span from tip of finger on one hand to tip of finger on the other
hand.  We had to stand straight up with our arms extended.

   Head circumference.  Head circumference?  We had to measure how big
around our heads were.  That was silly.

   Waist.  I wrapped the measuring tape around Steve's waist.  30".  This
was getting a little intimate.  Steve's cock was beginning to twitch
somewhat.

   Chest.  I measured Steve first.

   Then he wrapped the tape around me.  He had to get the tape right across
my nipples.  It tingled some.  27".  (I'm very small!).

   Breast dimensions.  This one took us by surprise.  There was a special
tool that had to fit over the breast, almost like a boot.  It was then
tightened down until the entire breast was enclosed.  It measured exactly
how big around the breast was and how long it was.  It didn't hurt.  But it
felt really strange.

   Steve had to grab my breast and fit this cup over it, then tighten it
down.  And he had to do it for each breast.  It wasn't easy to make it fit.
Seemed to need three hands, and Ms Thompson was making sure that none of
the girls helped.  He had to step in really close and use his body to sort
of hold it in place.  His cock was now hard and pressing up against my hip.
Finally we got that done.

   I looked up.  Half a dozen people had gathered in the hall to watch. 
Not 6 feet from where we worked!

   Nipple length!  Steve had to tweak my nipples to get them hard and then
measure how long they were.  Since they were already hard, this didn't take
long.

   Length of foot.

   Length of calf.

   Length of thigh from crotch to knee.

   I spread my legs while he placed the measuring tape against my bare
pussy.  I could feel the moisture starting to run down my leg.

   I moved behind him to measure his leg but Ms Thompson stopped me.  The
instructions said to measure from the front.

   Kneeling down to put the tape against under his crotch put my face right
in front of Steve's now hard cock.  A long string of pre cum was dripping
out of it.  He looked really embarrassed.

   Hips.

   Measuring around his hips meant pressing his cock against his body.  It
jumped some when I did it.

   Testical dimensions.  Again there was a special tool.  I had to put a
little cup around his sack and tighten it down.  His balls felt hard and
firm, pulled all the way up to his cock.  Tightening it down meant pulling
them away some.  He grimaced and I thought I had hurt him, but he assured
me he was OK.

   Vagina length!

   I had to sit up on the table and spread my legs while he measured the
length of my vagina.  Looking up I saw at least a dozen people standing at
the window.  Suddenly they clapped and cheered.  One of the guys behind us
had cum and shot semen all over his partners face and chest!

   Ms Thompson calmly handed him a roll of paper towels and said this was
to be expected.  She told him to clean her up and restated that the girls
could not help.

   Cock length.  I had to measure form tip to base, pulling it up to get
the full length.  Steve looked like he was about to cum as well, but
somehow he held it all in.

   Labia dimensions!  I sat back on the desk and opened my legs.  He had to
spread my pussy and lips as wide as possible and measure their length. 
Talk about needing to cum.  I was beginning to tremble as his fingers
gently pulled me apart.  Behind me I heard another guy lose it and the
sounds of a girl in ecstasy.

   Cock head dimensions.  A cup had to be placed right over the head of the
cock.  I knelt down and put it over his cock and tightened it in place. 
The viewers cheered as I took it off and got shot right in the nose and
lips with his cum as he spewed.  It seemed to last forever.  He was so
embarrassed.  I grabbed some paper towels and he wiped my face off.  Some
had gotten in my mouth.  Salty.

   Clitoris dimensions!  Another little cup had to fit directly over my
clitoris.  I had never even really looked at it before.  Steve gently
pulled me apart and felt around for it.  He had to rub it quite a bit to
bring it out for the hood to go around it.  In the best of times it would
have been difficult.  I made it more so by jumping and moaning every time
he touched it.  He slipped this tiny little hood over it.  I felt
incredible.  Suddenly my toes curled, my legs straightened out, my back
arched and I bit my lip to keep from screaming as shots of pleasure rang
through my body.

   Steve looked at me and grinned as I relaxed, breathing deep.  He gently
removed the hood.

   Seems there was nothing else that had to be measured on Steve.

   But he had one more measurement for me.

   Vagina size.

   There was a large dildo attached to the table top.  I'd been trying to
ignore it the whole period.

   The instructions said I had to get on the table and lower myself on to
it as far as I could comfortably go.  Then Steve was to mark it right at
the point of entrance.

   I looked around.  A couple of teams were already done and watching the
rest of us.  A few girls were carefully lowering themselves down.  The
crowd had grown.

   I swallowed.

   Climbed on the table and squatted down.  The dildo was huge.  It started
small and gradually grew larger around as it went down.  Mostly it was
long. I guess to make sure that it filled each girl up.

   I pushed the tip inside me.

   It felt incredible.  I was still super charged up from my previous
climax.

   I rose up and slid down again, going a little lower.  I wanted it all
inside me.

   Up.  Down lower.  Up.  Down lower.

   I was fucking this dildo with a crowd of spectators 6 feet from me!

   Finally I slid down as far as I could go.

   I nodded to Steve.

   He knelt down and reached up to mark the dildo but instead he pressed
his thumb against my clitoris and rubbed.

   I exploded!

   Pleasure ripped through me like I had never felt before.  I grabbed his
hand and pushed it against my clitoris.  I bounced on the dildo, pushing it
further into me.  My back arched.  I screamed.  O my God, I screamed.

   I think I climaxed for 5 minutes.  I just couldn't stop.  Couldn't
control myself.  Didn't want to stop.

   When I came to myself I was impaled 13" on this dildo.  My body was
covered in a sheen of sweat.  And everyone was staring at me.  Even Ms
Thompson.  Then suddenly everyone broke into a round of applause.  I just
grinned embarrassingly.

   Ms Thompson quickly came over and helped me get off.  I felt incredibly
week.  Steve and another boy helped me down from the table.  Ms Thompson
carefully examined me and cleaned off my soaking pussy.

   She announced that I was fine.  Boy was I ever fine.

   I leaned against the table, barely able to stand.

   She told me I would probably be a little sore in the morning.  The
understatement of the year!

   I sort of brought the class to a close.

   We gathered up our stuff and headed back to our room.

   The walk back was uneventful.  A lot more people were around.  Word had
gotten out that we would be coming back and people had gathered to watch. I
had just had a world shattering orgasm in front of dozens of people. 
Walking nude through the commons didn't seem like such a big deal anymore.

   As we entered the class room the bell rang.  Ms Thompson announced that
we needed to be prepared to discuss our term projects for the next class.