He begins to feel a strange rumbling down in his posterior.
Instinctively, he places a hand over his ass. He doesn't notice
anything quite yet, only that the fabric of his jeans seems to be
stretched tighter than normal.
He ignores it for a moment and places the box back where he found it,
not wanting Mario to catch him with it. Adam is a bit concerned about
the strange rumbling sensation he felt, though it seems to have abated
a bit. He pushes back the slight worry that there may be any lasting
effects from having inhaled that powder and resumes his original
plans.
He'd planned on taking a few laps around the pool, and in light of the
strange feeling earlier, he decides that it would be the best way to
clear his head. He quickly changes his speedo. He has some trouble
getting the back up over his waist, but doesn't notice any obvious
differences, or that his ass is filling it a bit fuller than it ever
has.
Later, Adam stands in line at the diving board. The sound of a few
whistles and cat-calls alerts his attention to Sam and Tom who are
raising their eyebrows and flashing him some toothy grins. They're
attractive guys, thin and toned. Sam is tall, blond, and has his left
eyebrow pierced. His cheekbones are his most prominent feature, almost
like looking at a surfer image of David Bowie without the makeup. Tom
is a lot shorter and thinner, but makes up for it with his long black
hair that curls when wet and falls about his face, and those deep
brown eyes that Adam would sometimes fantasize about staring at while
getting a blow-job. Tom also had the benefit of having a sizable
bulge, leading many of the boys around campus to wonder just how big
he truly was down there.
"Dat ass!" one calls out.
Adam laughs at them and waves them off. His ass had never been one of
his primary features, but as he does so he feels a little breeze
across the top of his backside. Placing a hand on the small of his
back, he can feel the tip of his butt-crack exposed to the air. It's
like the speedo has shrunken on his body. He tries to pull it up but
can't without giving himself an uncomfortable wedgie that causes the
bottom half of his round cheeks to fall out.
The more he messes around with his speedo the more the obvious cat-
calls from the boys watching him. Adam tries to smile back, but the
longer he stands there the more lustful the looks in their eyes
become. It's like their eyes are being glued to his backside. They're
hot, but he can't imagine what they would see in him, and their
continued stares start to make him uncomfortable.
He goes for a dive, but just as his body hits the water he feels the
strange rumbling in his posterior again and the fabric growing even
tighter against his backside. He swims through the water and feels
practically naked as his ass becomes more and more exposed. He feels
the rumbling yet again as he stops at the pool ladder.
At this point it becomes clear to him that something is definitely
wrong. He starts to climb out of the pool only to hear a distinctively
loud ripping sound. The back of his speedo is the first to begin
splitting open. He climbs out quickly trying to cover his backside
with his hands. He can feel it, his ass swelling in his own hands
growing thicker, larger, rounder and more pronounced with each second.
Mario! He thinks and curses out loud. He looks up in horror as Sam and
Tom come running up behind him. They reach him just as the rest of his
speedo gives way leaving him completely naked in front of them. He
looks over his shoulder to see the stunned look on each of their
faces.
"Holy shit," Tom says.
Adam's ass is huge, each cheek roughly the size of a basketball. Adam
can look just over his shoulder and see how pronounced it's become. He
groans inwardly and swears to get Mario back for this.
"Could I borrow a towel, guys?" Adam asks sheepishly.
He cringes as he feels the familiar rumbling begin again.