They were at it all night. Phil shot his prodigious load into Dan’s mouth pretty quickly the first time. After a short break, Phil returned the favour, diving down between his legs and sucking Dan’s cocklet with inexperienced enthusiasm. Dan had to tap Phil’s head a few times to get him to ease off so he could make the experience last as long as possible despite the sensitivity of his new member. Dan loved running his fingers through Phil's curtains of mid-length hair while he went down on him.
Dan introduced Phil to the joys of rimming as well. After a while he had Phil squealing with pleasure like a cheap whore.
They took another break, wrapped in each others arms, took the chance to learn more about each other. Dan was surprised by how much they had in common – manly Phil struck him as much more of a lad but it turned out he was more of a secret nerd.
At one point Dan teased Phil about his third leg. Phil retaliated in a good humoured way but it struck a nerve with Dan. When he began to get hard again keen for another blow job he waited for Phil to get between his legs and wrap his lips around his cock head before swapping their junk. The sight and sensation of Phil’s meaty monster sprouting from his own groin, surging into Phil’s mouth, seeing him gag, eyes agog was such a turn on Dan nearly came there and then. But he held back and enjoyed the experience of having a cock too big to fit in his partners mouth. He tried the same switcheroo again when Phil wanted to try anal, easing his own dinky cock into Phil’s tight ass, then swapping dicks, enjoying the sensation of increasing tightness as his cock grew to fill Phil’s behind. He ramped up the rhythm and enjoyed watching Phil in the mirror door of his wardrobe, watching his face contort with pleasure, seeing Dan’s former pindick and balls bounce with every thrust. He enjoyed the way Phil seemed to have difficulty controlling his over sensitive new junk, the way he came within minutes of the swap without his penis even being touched, firing its load like a cannon and painting the sheets below.
Intrigued by the force of his transformed partner’s ejaculation, Dan couldn’t help wondering how impressive it would be if Tim’s former prick were paired with Phil’s bull balls. Tempted though he was by the prospect, he decided to save that experiment for another time.
Finally spent, they collapsed into each others arms and slept.
*
Dan was woken by his mobile alarm at 5.30 in the morning, first puzzled then quickly realising it was part of the new exercise regime he’d acquired from Tim yesterday. He had to head out to the gym on the other side of campus to do his weights and his cardio in order to maintain Tim’s twunky body. He sat up in bed, feeling the heavy weight of Phil’s monster member slip down from where it was resting on his left thigh to hang between his legs. He turned to admire the naked dozing firm of Phil, his hairless body on full display, including the tiny little dicklet Dan had forgotten to switch back last night. It looked comically, arousingly undersized on Phil’s tall athletic body. It rested pointing up to Phil’s hairless stomach revealing the small tight nutsack beneath. Dan smiled at the memory of the transformation of Phil’s personality last night as a result of the dick exchange. He’d gone from being cockily patronising about Dan’s sub-par junk and its hypersensitivity to swooning over his massive hose. Pin-dick Phil couldn’t get over how lucky he was to have found such a well hung twink like Dan. He enjoyed the change and fully intended to try it out again in future.
Dan decided to treat Phil to a BJ for a wake-up call and soon had his partner moaning and writhing with ecstasy.
“that was great mate, honestly. Never known anyone so keen to play my piccolo. Girls always want a bruiser like yours.”
Hearing Phil talk like he had always had a microdick almost had Dan dive back into sex again but the pull of his newly acquired passion for working out called to him.
“your dick is perfect and I can’t wait to taste it again. Besides, you said yourself you like boys now. You don’t need to worry about what girls think.” Dan said as he slipped his boxers on, did his best to stuff his stolen dick into them.
“Cant wait to feel you inside me again. You made me feel whole.”
Dan now dressed winked at Phil, kissed him on the lips and switched their dicks back as he did so. He breathed a sigh of relief at the extra room in his trousers. He couldn’t imagine how Phil felt stuffing his monster into those girls panties all night. He preferred Phil to keep his own cock and, besides, he might need his small cock to bruise the egos of a few people at the gym.