Luke's chest was getting shaggy. REALLY shaggy. The muscle he had gained earlier was clearly there, but it was hard to see its definition under the thick, fast-growing pelt of fur that covered his pecs, trailing down over his abs and into his shorts. As the fur kept growing, the latch of fur under each of his armpits so thick that keeping his arms by his sides was becoming awkward, he heard the sound he now dreaded: another beep from his computer.
Someone had changed his profile on The Wiki again... and it's a good thing the change log was still open, because there was no way he'd be opening it with the paws he had been given in place of hands. As he glanced at the screen, looking through the log, he was already feeling odd... like he wanted a challenge, to explore; take new risks... and he noticed a slight tingling in his crotch, too...
As the bottom of the screen, he found the change. It was a simple, one line edit under "Traits." Nothing but a bullet point labelled "Ballsy." Well, that explained his mental urges, Luke thought, as he subtly rubbed his package with his paw, the tingling feeling intensifying... wait... did his cock feel bigger?
Luke glanced down, noting as he did that his chest was still getting furrier, the scruff pouring out as quick as ever... but... the bulge in his shorts was DEFINITELY bigger... and... it was swelling!
Startled, Luke took off his short, seeing his black boxers stretched tight against not his cock, but his balls -- they were huge! Their outline looked like a couple of large grapefruits, clearly still growing and straining the fabric of his underwear! As his boxers stretched, he could clearly see how furry they were, too... it seems that change was affecting EVERY part of him...
Luke was really starting to panic, with his paws there was no way he could change himself, and now he was getting bigger and furrier by the second! At the same time, he was feeling ballsier than ever before, maybe he could have some fun with this body....