Aidan grabs Marks legs and lifts them up exposing his still messy butt.
Aidan moves his head in and takes the first lick of Marks chocolate covered backside.
"Yum."
Aidan quickly becomes hard from the first lick, and he goes in for another taste, scooping up more of Marks pudding with his tougne.
He continues to lick away at Marks posterior until he had cleaned most of it up, Aidan's member throbbing with each lick.
Finally finished, Aidan removes the diaper on Marks head setting it aside, exposing the mess covering his face.
Aidan grabs a pacifier and runs it down Mark's face before pushing it inside his mouth.
He starts tugging at Marks still hard dick, and as Mark approaches climax, he lifts the diaper up to catch his seed, a couple more tugs later and Mark shoots a load into the front of the diaper.
"Now the fun part."
Mark is unbuckled from the chair and the pacifier removed.
Aidan positions himself in front of Mark, sitting down on the edge of the bouncer and in the sticky deposit Mark left.
As Aidan starts to rub himself, Mark notices everything getting bigger and bigger.. He is shrinking!
Room starts to open up on the bouncer and diaper, and Aidan shuffles in to fill the space.
He continues to rub himself, and as he approaches climax, Mark has shrunk down, the diaper he is in now resembling a king size mattress.
Aidan shoots his load into the diaper and over Mark, drenching the now tiny human in his seed. He then bends down and laps up a bit of the sticky liquid contained in the diaper. He rubs his pinky across Marks torso, collecting some of the cum and pushes his finger into Marks mouth.
Finally Aidan turns around, sits down into the diaper, planting his ass on Mark and taping himself in.
With a diaper finally wrapping and protecting Aidan, his tummy rumbling intensifies and with a loud fart and a relieved sigh, he starts to fill the seat of the diaper with the poop that's been edging to escape since his feeding from Mark.
Mark is helpless as the mound of shit grows out of Aidan's ass and begins to envelope him. He can't help but get a good mouthful of Aidan's muck as it makes its way from the source.
Aidan stands up with the now full diaper drooping between his legs. Mark, now free from Aidan's butt crack works on manoeuvring his way out of the mess and towards the front.
He wiggles free and finds his way towards Aidan's dick, tickling it as he climbs his way forward.
"Ooh, that felt interesting."
Aidan the front of his diaper and rubs it up and down a few times dragging Mark across his still soft member. Mark, with the taste of Aidan's poop, becomes horny again and he begins to hump Aidan's flaccid shaft.
Aidan grabs his crotch holding Mark in place and then relaxes. A warm sensation his Marks back followed by a flood of liquid, Aidan was peeing!
It caused the padding to bloat and close in around Mark pushing him tighter onto Aidan's shaft.
With the flooding finally coming to a close, Aidan begins to rub Mark against his crotch again. Mark quickly takes over, continuing the rythem and keeps grinding Aidans tool.
Aidan grabs the pacifier, dips it in Marks old messy diaper and pops it in his mouth causing his member to stand to attention again, giving Mark something more solid to grind against.
It's not long before the tiny Mark shoots his load over Aidans dick. The cum he had swallowed earlier now also taking effect, and Mark poops out a small mess into the front of the diaper.
Aidan grabs Mark through the diaper and starts rubbing him up and down the shaft like before, transferring Marks most recent excretions to the mess of shit, piss and cum he's covered in.
After a couple of minutes Aidan speeds up and starts breathing heavier as he reaches orgasm.
He tries to drag Mark up as close as he can to the tip, leaving Mark cuddling the shaft as Aidan takes his hands away. He makes his final couple of thrusts, before his dick jerks and quivers.
Mark is shaken about as Aidan's tip erupts in an avalanche of sticky goo.
It oozes it's way down his dick, the front of the diaper, and, of course, all over Mark.