Note: This story was dynamically reformatted for online reading convenience.
 
 I'm David.  I'm 10 years old and have short brown hair.  I'm a pretty
normal kid, and I'm in year 5 at school.  I'm not really interested in
girls at the moment, but I do sort of know what happens when a a boy and a
girl date.  There's one girl in my year, called Lucy, who catches my eye.
She is about the same height as me, 4'4, and has light brown hair in a
ponytail.  She clearly understands hair styling already, as she has it cut
in a fringe that covers her forehead, and her hair is always shiny and
clean.  Because me and Lucy live next to each other, we're quite good
friends.  I've seen her naked loads of times, since I was about 4 to when I
was 7, but I never thought anything about it, I never really though boys
were different from girls apart from them having long hair and not having a
dick.  I remember when I was about 7 I played doctors with her:

   We were at my house after school in my room, which was typically covered
in underwear that had been thrown on the floor, and posters of supercars
and tanks and guns.  Lucy didn't really take notice though, but did comment
on how ponies and pink was better than Lego and blue. 

   I'd just put my cars away when Lucy said, 'Hey!  Wanna play doctors?'
'Uh, how do you play?' Lucy chuckled at my naiveness.  'Well, we take all
our clothes off and do operations on each other!' Since I had seen Lucy
naked loads of times, I didn't care about taking my clothes off in front of
her.  I quickly stripped out of my school polo shirt and trousers, till I
was in just my pants and socks.  I took my socks off then slid down my
underwear.  I didn't have a boner, I didn't even know what one was.  'Go on
then!  Take your clothes off!' Lucy did as she was told.  She took off her
shoes and slid her long white socks down.  She then unbuttoned her white
school shirt, and took it off, revealing her bare, flat chest.  As far as I
was concerned at this point, we were different in no ways except our
clothes.  I was still standing there naked in front of my friend, while she
slowly slid down her grey pleated skirt, making sure not to catch it on her
knickers.  She dropped it to the floor, stepped out of it and threw it onto
my bed.  She stood in front of me in just her plain white panties, then
slid them down.  This was the first time I saw a proper pussy in front of
me, but I didn't feel anything about it.  I stared at it for a while, and
then said,  'What is it called?' Lucy looked at me again, smiling at my
cluelessness.  'I don't know what it's really called but by mum calls it a
cunny.  I just pee out of it.  What's yours called?' 'I know it's called
a...' I giggled, 'penis, but I call it a willy.' Lucy stared at it for a
while, and then moved up to my dick and touched the tip of it.  I jumped,
and shouted, 'Hey!  Dont touch it!' 'Oh, sorry.  Well, what if I let you
touch my cunny, thatll make us even.' I agreed to her offer, and moved up
to lucy's pee hole.  I put my finger on her pubic mound, just above her
slit, and slowly moved it down.  My finger fell into her cunny, and Lucy
jumped and pulled back.  'Hey!  I said touch it, don't put your finger in
it!' I blushed, embarrassed.  'Oh, sorry.' We then heard mum coming up the
stairs, so we quickly got our clothes back on and jumped on the bed.  And
that was the first time I properly saw lucy's pussy. 

   That was three years ago, and I haven't seen Lucy naked since.  I
suppose that's a good thing, because I'm starting to mature, and I know
sort of what causes a boner. 

   Lucy had to stay round my house for the weekend, because her parents
were going away.  My parents were going with them, but my 16 year old
brother said he would look after us.  Typically though, on the Friday
night, after we'd had dinner, he went out to a party and said he wouldn't
be back till after midnight.  'Now, to keep mum happy you two should be in
bed bed by 10.  If you don't tell her about me going out, I'll let you do
what you want over the weekend, deal?' We both nodded, and with that, he
went out.  It was about 7 o clock, so me and Lucy stayed downstairs and
started to watch some tv. 

   After about an hour of flocking through the channels, we stumbled across
an 'adult' channel.  I didn't really know what was going on, but a man and
a woman were both naked and kissing a lot.  I don't know why, but my dick
started to go stiff.  I stared at the tv, until Lucy groaned in disgust and
changed the channel to something musical.  'Did you see that, Lucy?' I
asked, still in awe.  'Yeah, it was gross!' 'You really think that?  I
thought it was...  Weird.' 'What do you mean, weird?' Lucy asked, looking
at me intently.  'Well, I've um...  My willy is...  Stiff.' Lucy moved
back, surprised.  'Really?  Why?  I mean, it's just naked people!' I looked
at her, embarrassed that I'd just admitted my arousal.  'Look,' she said,
'It doesn't matter.  How about we take our clothes off, and spend the rest
of the night naked.  Maybe thatll settle you?' I couldn't believe what Lucy
had just said.  I asked if she was serious, and she said, 'Well, we get
changed for p.e.  in school in the same room, so what's the difference?' I
knew the difference, but since Lucy was the one who offered to take her
clothes off, I wasn't gonna pass it up.  I then hastily agreed, and took my
school shirt off.  I got a huge sense of deja vu, remembering that time
three years ago.  I pulled my shirt over my head, and took off my shoes and
socks.  I then took off my trousers, showing my tented briefs.  I then
looked at Lucy, who was staring at me, and pulled my pants over my
throbbing dick, and down my still hairless legs.  I stood infront of my
preteen friend, who was looking at my cock.  She still didn't seem
interested, and set to work unbuttoning her white shirt, the same way she
did when she was 7.  She finished unbuttoning her shirt, and left it loose
around her shoulders while she took off her shoes.  I got a flash of her
nipple when she bent down in front of me, and I felt a twinge surge up my
dick.  Lucy then slid down her socks, and left them at her feel.  She then
pulled her shirt off, and left it on the floor.  I got to see her topless
form in all it's glory.  Her chest was still flat, with small brown
nipples. Her stomach was small and flat, and her baby fat had almost gone,
showing a slim but pretty figure.  It was then that Lucy realised that we
were still downstairs next to a big window, and that one naked 10 year old
boy, and a half naked 10 year old girl were just standing in the middle of
a room bearing all.  'We should move upstairs.' Lucy said with some
authority.  I agreed.  My penis had started to soften, as we were about to
do a mundane task, and by the time lucy had picked up her shirt, shoes and
socks, my dick was completely flaccid.  We walked side by side, with my
cock swinging about.  It was a strangely free feeling, I hadn't walked
about the house naked since i was very young, and I must say it did feel
rather nice, feeling the wind passing past my balls, and my cock swinging
about freely.  Lucy was still wearing her skirt, but it was a lovely sight
seeing the girl I had a crush in walking topless around my house.  When we
got to the stairs, Lucy said she'd go first.  As she started walking up the
stairs, I followed, staring at her ponytail swishing back and forth as she
moved slowly up the stairs.  I saw her butt moving like a womans as she
strode, and I moved my hands up to it and gave it  a squeeze.  Lucy
stopped, and spun round.  I expected her to be angry, but she just looked
at me.  'What did you just do?' she asked inquisitively.  'Um, I squeezed
your butt.' She looked at me for a few seconds, before nodding and
continuing.  I was shocked that she didn't react more, but I didn't really
care.  I followed her up to my room, which hadn't changed much since she
was last here three years ago.  I still had blue things everywhere, but I'd
grown up a bit and got rid of the toy tanks and cars.  I kept the door
open, and sat down naked on the bed.  Lucy made sure nobody was around, and
continued stripping.  She slid her grey pleated skirt down like she did
when she was 7, revealing white panties, that were similar if not exactly
the same as the ones she wore last time.  She left her skirt at her feet,
like she did her socks earlier, and then put her thumbs by her hips and
slid them under her panties' elastic.  She then slid her knickers down. 

   Her pussy was bare, and was just a slit in her crotch.  At the top was a
little bump which jutted out a little bit from her snatch.  As her panties
dropped to the floor, my dick started to stiffen again.  'Why is that
happening?' Lucy asked, curious.  'Why do you think?' I asked her back. 
Lucy thought, but didn't come up with an answer.  It was weird, someone who
knew so much about her own body didn't have a clue what happened in a
boys.  'Well, when my willy first went stiff, I searched the internet for
why, and it said that when a boy saw a girl he thought looked really good,
his willy stiffened because it wanted to um...  Have sex.' Lucy was both
flattened and annoyed.  'You mean you want to have sex with me?!' she
cried, 'No no no!' I said back.  'Sex is gross!  I just um...  Think you're
really pretty.' Lucy blushed, smiling sweetly at me.  'Thanks David, that's
sweet.' Things were awkward for a while, but when my dick softened again it
was business as usual.  We talked and laughed and played games.  Soon
though, Lucy said, 'Hey, remember when we played doctors?  When we were 7?'
I nodded.  Somehow I thought I'd never forget.  'Well, wanna play it again?
We're three years older, and we've both changed.  Maybe we should explore
each other again.' I agreed, as long as she went first.  She nodded, and
moved up to my dick, which was flaccid.  She asked how to get it hard, and
I said she had to do something that made me excited or it had to be rubbed.
Lucy told me to sit on the floor with my legs out.  I did as I was told and
she then lay on top of my stomach.  I felt her pussy quivering on my
stomach, as she moved up and down my stomach.  She was rubbing her pussy
against my stomach, and it was getting me hard.  when Lucy felt my dick
pressing against her ass, she stood up and looked at it.  Her cunny had a
small droplet of liquid nestling on the slit, and I asked what it was.  'I
dunno, it's only happened once before, well, when I first saw you naked
earlier.  I didn't wanna say because I felt all weird down there and I
didn't think it was natural.  It feels good though.  And...  That sex thing
doesn't seem like such a bad idea anymore.  Um..  Do you know how to do
it?' I didn't, but I knew where to put my dick.  'Lucy, can you lie down on
the bed?' Lucy did as I said, and lay down on my bed, legs wide.  I climbed
on the bed and positioned my legs either side of her hips.  I positioned my
dick just above her cunny, and then placed my dick inside.  My dick is
about 3 inches long when erect, and it only went half an inch in, so I
pushed, and something broke.  Lucy cried out in pain, and I didn't know
what was happening.  'Lucy!  Are you okay?' Lucy calmed down, and looked at
me, tears in her eyes.  'Yes David.  Please, please keep going, it feels
weird there!' I did as I was told, and pushed into my preteen friend.  She
let out a small moan, and I felt the amazing feeling of a virgin pussy
engulfing my dick.  I pushed in and out of the 10 year olds cunt, not
really knowing what was happening, my instinct had taken over.  I sped up
my thrusts, and Lucy was moaning loudly in pleasure.  'Oh god David, this
feels so good, I dont know whats happening.  My cunny feels wet, I feel
like I'm peeing!' I kept pushing, my dick in ecstasy.  I was keeping my
hands on lucys nipples, and when I looked at her face, her eyes were closed
and her mouth was open.  Her pussy was quivering and moving around my dick,
tightening and loosening around it.  It was squirting and squishing around
my cock, really wet and tight.  I was in heaven.  My thoughts were soon
interrupted by Lucy screaming out, 'Oh god David somethings happening!  Oh
god, AAAHHH!' Lucys pussy exploded around me, going unbelievably tight and
wet.  She was shivering all over, and her face was contorted in a state of
utter pleasure.  The tightness around my dick was so much, it went really
hot and I felt like I was pissing in the preteen's snatch.  My balls
contracted and exploded, spurting more of what felt like piss into lucy's
10 year old cunt.  Soon, we both calmed down, and lay there, me on top of
Lucy.  When my dick had softened a bit, I pulled out of my friends pussy,
and looked at the concoction of blood, pussy liquid and cum seeping out of
it.  'Oh god, David that was the best thing I've ever felt.  I love you
David, I want to do it again soon.' 'I love you too Lucy, we'll do it again
tomorrow when my brother is out.' Lucy cuddled me, and then lay on top of
me, her pussy lying on my preteen cock, pulled the covers over us, and fell
asleep, in post-orgasmic bliss.