Hide? Yeah, SURE that'll work.

"OH SHIT!" screamed Jace, looking back over his shoulder at the collection machine. It was sitting against the wall, ready for use, but there was no VR headset. He glanced wildly around the room, trying to avoid looking at the massive balloon of flesh that was Lily. That COULDN'T be real, could it? He glanced down at his...his...HUGE fucking flaccid cock. It hung at least a foot long, and as thick as his arm, resting at a 45 degree angle from his body, unable to go lower because his massive nuts were pushing it out. Was this fucking REAL?!? Last night HAD been a hallucination, hadn't it? Right? And where was that damned VR headset? He glanced at his cock again, reaching down to pick it up in one hand. It felt heavy and real, and he felt his hand touching it.

What. The. Fuck.

His (apparently) newly massive dick started to fill with blood again as he touched it, and he dropped it, startled to realize he felt like he could go again, not 3 minutes after he'd literally inflated a woman **** with his cum. How was that even POSSIBLE. Even if he'd somehow shoved his entire body into Lily, she wouldn't be that full, and suddenly he glanced down at himself in fear. Sure enough, he looked scrawny again, but not as much as the shower...dream? It hadn't been a dream, had it.
But how had he returned to normal?

He'd been ****. A default? But where had the extra mass come from? Had he...absorbed the cum somehow? Eaten the VR headset? But no, that wouldn't have added much...He glanced around again and realized that the ONLY thing left in the room was the mattress under Lily. Table, chair, computer, recliner, flatscreen, shelves, bed frame, carpet, even the friggin' protein bar wrapper he'd seen lying next to the disposal chute was gone. The only thing left was the mattress and...He whirled around and started checking the floor near where the bookshelf had been.

Jace sighed in relief as he found the tiny statue of a completely nude Tsunade, but with proportions even more generous than in the anime, which he'd commissioned from an artist he'd met online. It was his favorite keepsake from before nanotech, and until he met Lily, that version of Tsunade had been his favorite masturbation fantasy.

But why had THAT survived, and nothing else?

"Because you wanted it to", said a voice.

INSIDE his head.