He insists and tell her to hurry up.

"Listen, it's all your fault. You gave me this thing knowing I had a date tomorrow. Do what you have to do but I want to be back to a normal human sized dick before Lily comes he tomorrow, no matter what!" he screamed at her before leaving the lab, not even letting her do any testing.

Unable to wear anything and unwilling to have dinner like that in front of his mom he just ate some snacks in his room before going to bed. The stupid thing was so big that if he laid on his back his chin was resting on top of the tip of it. He wouldn't be confortable sleeping with it hard like that.

Jerking off this mastodon was easier said than done. Even two hands were barely enough. He browsed porn for hours trying to get himself going but to no avail. At some point it looked more like a work out than pleasuring himself, his arms were tired and cramping. Finally he got there and was surprised, the orgasm he felt was a lot less intense than it usual was, but the volume was something else. He got splashed right in the face by what looked like an entire bowl of his cum, almost **** as it covered his mouth and nostril. And it didn't stop there, as he moved his cock away from his face after the initial burst it kept splattering cum in the air that fell back on his body and his bed. When it finally stopped his dick finally softened and shrunk a bit, especially in girth. He was covered in gunk and his bed wasn't in any better state. He used the other side of his bed sheet to wipe most of what he could from his body and realized his problem. He had no spare sheets in the basement, still couldn't wear anything that would cover him normally, didn't want to risk sneak to the bathroom on the second floor naked and couldn't risk sleeping on the bare mattress because his mom would kill him.

He slept on top of bottom sheet, with nothing covering himself, hoping that his mom wouldn't go down to the basement in the morning.

Thankfully she'd be gone for work long before Lily arrived, so when his alarm clock rung he ran upstairs to shower before pounding on the door to his sister's lab and bedroom (which received a lock once it was no longer his room).

"Hmm, what do you want?" asked a sleepy Emily after opening the door.

"What do you think I want?" he replied pointing at the floppy baseball bat between his legs. "Is it ready?"

"I worked on it all night and that's the best I can do in such short notice. Reabsorption of tissues is a lot trickier than growth. I'm still saying it's a stupid idea and I can't guarantee the outcome but in theory it should help you get rid of this. Still want it?" she warned before asking him.

"Hurry up Lily will be there in less than an hour." he pushed her.

Emily jabbed him in the neck with her injector gun and pumped him full of the anti serum she had spent all night preparing.

"There, happy? I'm going back to sleep now and I'm activating my privacy field, so no need to bother me again before tomorrow I won't hear you." She told him before slamming the door and locking it. It soon began to glow faintly blue as did the entire wall of her room.