Kari’s neighbor had a cock nearly as thick as both her wrists put together. He’d had his original cock replaced with one of the lab grown cocks.

Since he was part of an experimental group, his new cock had been designed to be thicker than any other before and instead of fluctuating between hard and soft, it was always rock solid, thanks to a latticework that kept it that way.

No matter how many times he came, and thanks to enhanced production in his massive balls that was often and plenty, he’d never get soft again.

The first day he got back, he fucked Kari’s tight asshole for nearly 8 hours straight. She’d passed out from the pain, of course, but woke up several times, to his massive cock still slamming into her.

It had been a year, and now she was perfectly suited for him. He’d nicknamed her his “Little Cocksleave” and he fucked her ass whenever he liked, even in public.

Her neighbor and his girlfriend often had Kari over for drinks and to work his cock while they had dinner.