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 Alex was 17 and spent most of his spare time jerking off in his bedroom. 
He was slimly built with a smooth chest, blonde hair and a long slim cock
that required a lot of attention.  Sometimes he would get hard in the
strangest places, in the library or on the bus for example, and he would
rub his erection through his trousers loving the feel of how big his cock
got inside his pants.  Most of his fantasies involved young girls his age
seducing him and teaching him how to fuck.  But he was not popular with the
girls in his class, being quiet and studious, too shy to talk to them.  His
greatest sexual experience to date was finding a pair of used panties one
time when he sneaked into the girls locker room, the crotch still stained
white from whatever cunt had rubbed against them.  He jerked off sniffing
these panties over and over, until finally that slightly fishy musky cunt
smell faded away and the panties just became something for him to cum on.
   It was in this state that he found himself walking home late one night
through the park, having stayed late at school for band practice.  He was
feeling particularly horny and desperate after more than an hour of staring
at his music teacher's very full blouse, with the buttons straining to hold
in her large heavy breasts.  Just thinking about it as he walked along made
his cock swell, and he began to think about jerking off.  It was dark in
the park, only a little moonlight and there was no one around.  He slipped
his hand down inside his pants and felt his cock hard and throbbing, the
head brushing against his thigh.  On instinct he unbuttoned his fly and
guided his cock out through the gap.  It was a warm night and the air felt
good on his cock as he walked along, loving the feeling of his hard cock
swaying back and forth with each step.  He began to wish he could strip off
completely, walk around naked jerking off as he liked, but it was scary to
think who might see him and perhaps report him to the police as a sex
pervert.  Reluctantly he tucked his cock away and looked around for
somewhere to hide himself while he wanked himself off.
   There was a public toilet in the park, an old stone building covered in
graffiti and long neglected.  A dim light was on inside and Alex started to
walk over to it, thinking he could pretend he was pissing if someone caught
him.  He was a little worried about the perverts who might be hanging out
in a public toilet late at night but part of him was excited by it also. 
Although he had never considered himself gay he liked the idea of other men
admiring his cock, perhaps complementing him on its length.  It felt wrong,
but the thrill of it gave him courage and with his heart pounding in his
chest he walked around the stone entranceway and into the toilets.
   He had been in here before during the day but at night the toilets were
even more sordid, stinking and dirty.  A single dim light protected by a
wire mesh lit up a urinal trough still half full of stale yellow piss. 
There were just two toilet stalls, and the bowl in one was smashed and the
door was missing.  The other stall was open but from where he stood Alex
could see dark stains of dried shit all around the toilet seat and bowl and
he kept well away from it.  Instead he walked up to the urinal and pulled
out his cock once again, licking his fingers as he slowly rubbed them over
his cock head.  He began to imagine his music teacher sucking on him, and
he looked up at the small broken window above the urinal as he felt his
dick swell and harden once again.
   "Well, what have we here?" The voice startled Alex and his heart leaped
into his throat.  He thought for a minute of his original plan, to pretend
he was pissing, but it was obvious he was not.  Turning he saw the man
behind him, a large fat older man with grey hair and a moustache.  He was
wearing a shirt and old man trousers pulled up high over his belly and
looked respectable enough.  Alex immediately felt ashamed to be caught like
this, but the man simply smiled and looked with undue interest at the cock
sticking out from Alex's trousers.  "It's OK, I came in here for the same
thing" said the man, unbuttoning his fly.  Alex, confused, wondered whether
he meant pissing or wanking and was scared to say anything.  The old man
stood in the middle of the room and pulled out his cock, a small dark uncut
penis that hung limply from under his large belly.  "Perhaps we can help
each other out, hmm?"
   The man stood between Alex and the door.  He wanted to run, but felt
intimidated and panicked by the situation.  Also his cock was twitching
eagerly on its own, bouncing up excitedly from the base of his penis as his
blood flowed into it.  Alex felt betrayed by his own erection and he made a
futile attempt to tuck it back inside his trousers but it was fully erect
now and too big to push back in easily.
   "Such a shame to hide such a beautiful cock" said the old man, stepping
closer.  And now his hand was on Alex's cock, rough and warm, another
person holding him where only he had previously touched himself.  The old
man began to rub Alex's dick, his backhanded grip so unusual to Alex's
usual method of jerking off, and it felt so good.  He watched amazed as the
old man worked on his cock, then knelt down before him and reversed his
grip, jerking his dick and brushing the head against his lips.  Alex could
feel the old man's breath on his cock, and the hairs of his moustache
brushing against it.  Oh fuck it felt so good he thought, so much better
than any wank he could remember.  As the old man slid his dick into his
warm wet mouth Alex moaned aloud, letting go of his inhibitions in this
moment of sheer physical pleasure.
   "Uh uh, not yet, first you have to satisfy me" said the man, letting
Alex's dick slip from his lips as he stood up.  He undid his trousers,
letting them drop and Alex could see his large round belly covered in hair.
His cock was standing up now, small and uncut, only about 4" long but so
very hard.  Alex knew what he had to do, and was so turned on he did not
hesitate, wanting only to discover this new experience.  He knelt down on
the cold tile floor of the toilets and rubbed his hands on his thighs to
warm them up before cupping the old man's balls in his hands.  They felt so
warm and heavy, so much saggier than his own.  Under the single light Alex
could see the old man's genitalia was so much darker too, almost like a
black man's, and he wondered if that difference in skin tone was normal.
   "Don't be shy boy, you know what I want" said the old man, and then he
sighed happily as Alex covered his cock with his mouth, closing his lips
around the old man's hard little cock.  He could taste something salty, and
realised it was piss mixed with something else, dried cum perhaps.  Oh fuck
this is dirty, thought Alex, and ran his tongue greedily over the old man's
helmet feeling his cock twitch gratefully in return.  Trying to copy what
he had seen in porn videos Alex began to bob his head, sucking noisily on
the dick in his mouth like it was a lollipop.  The old man stood with his
hands on his hips and smiled appreciatively down at him.
   "Mmmm, you're good at this.  Now I think it's time for you to eat my
ass".  Alex stopped sucking and looked up, thinking perhaps he had
misheard. The old man did not pause though, he turned around and spread his
large hairy white ass cheeks and Alex found himself looking directly at his
asshole.  Alex had played with his own ass a bit, admiring it in the mirror
as he fingered himself, but it looked nothing like this.  The old man had a
dark patch of skin all around his asshole, which was even darker and
puckered out like top of a volcano.  It almost looked like a pussy but he
could smell the musky smell of sweat from the dark channel of his ass,
sweat and dried shit.
   "I....  but..." Alex couldn't think of what to say.  He had put himself
in this position and he realised there was no backing out now.  Reluctantly
he moved his face closer, and cautiously he flicked his tongue out and
licked it across the old man's dirty hole.  The old man grunted
appreciatively and Alex licked again, his tongue tasting salty dried sweat
and an earthier taste, the old man's shit?  Oh fuck, what am I doing
thought Alex, but his tongue worked away almost independently lapping at
the old man's shit hole as he gripped his buttocks with both hands.  Soon
he didn't notice the taste, just the feeling of this ass-cunt responding to
him.  He could feel it opening up as he licked and he pushed his tongue in
deeper each time.
   "Mmmm, that's good, now I want to feel your cock inside me.  You ready
to fuck now?" Alex didn't need asking twice, his cock was actually aching
it was so hard.  As the old man got onto all fours Alex spat on his hand
and worked at lubing up his cock.  He'd never fucked anyone before and he
found it crazy that his first time was going to be inside some old pervert
in a public toilet but he certainly wasn't going to back out now.  As he
moved between the old man's legs he pressed the head of his long thin cock
against the glistening wet asshole he had just tasted.  His cock head slid
inside easily and he sat up and pushed forward feeling the old man's
asshole open up and grip his whole shaft firmly.  It felt so good, and
although it was his first time Alex knew exactly what to do.  Working his
hips he started to fuck the old man in long slow pumps.  He felt his cock
sliding in deep and the old man grunted with each thrust into his ass. 
Alex started to pump harder, working his cock in deeper each time,
ploughing the fat dirty ass with his hard young dick.
   "Mmm, fuck, yeah, you like that" Alex asked as he thrust his cock in. 
The old man merely grunted again, accepting the cock, needing to be fucked.
Alex could feel his balls brushing against the old man's ass at the end of
each thrust now and knew all 8" of him was inside.  "You want my fucking
cum?" he asked as he started to fuck harder and faster, driving his cock in
deep.  The old man only moaned again and Alex could see his hand working
frantically under his belly to wank himself off.  "Oooh fuck, you dirty old
fucker....." unable to contain himself any longer Alex felt his cock start
to cum.  It felt amazing to be cumming without the familiar feel of his
hand.  Instead he felt the old man's ass take his cock and grip it as he
pumped his cum into him.  One jet of cum after another until his balls felt
empty and spent and Alex collapsed over the old man's back.
   As they moved apart Alex felt in no hurry to put his cock away again. 
It hung limp from his trousers, the head still dribbling white cum, with
dark brown shit from the man's hole visible under the rim of his helmet. 
The old man stood up slowly, moaning from the fucking he had just received.
As Alex looked up he saw the old man's cock was dribbling cum too, a trail
of white sticky goo covered one large thigh.  Alex watched as the old man
dressed, and was surprised when, without a word he simply walked out
leaving Alex still sitting on the floor.
   Alex thought back over what had just happened.  Did this mean he was gay
now?  He wasn't sure, he still felt the same, still wanted to fuck the
girls he had always fantasized about, but this was something different. 
Thinking back to licking the old man's asshole, he could still taste that
unfamiliar taste in his mouth and he laughed as he realised he was hard
again.  His dirty cock was sticking up hard and proud as though he had
never cum.  With one hand he started to idly stroke it.
   "Well, that looks tasty" said a voice.  Alex looked up and two young men
were standing in the doorway of the toilets dressed in leather jackets
watching him.  "Mind if we join in?" asked one, walking forward, his fat
uncut cock hanging free from his pants.  
  
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