"Can you get it for me?" 

"Of course not, stop being lazy" Henry jokes

"But I can't pause the game!" 

"We're playing the same game you dumbass, I can't pause it either"

"Oh, yeah, I forgot"

"Sure you did. Take your time, we can hold it while you're afk" Henry assures Ethan

"Thanks dude!" Ethan gets up and goes to the kitchen, his movement causing another waft of sweat to reach Henry's nose

"Maybe take a shower while you're at it" Henry laughs. Ethan turns around to give him a mocking look back but looks surprised for a second instead, and Henry notices.

"What?"

"Nothing, I thought you adapted" Ethan shakes his head and smirks at his roommate before leaving the room

Henry keeps playing while Ethan is away for a couple of minutes, failing to realize he is slowly shrinking. Focused on the game to cover for Ethan, even if his shoes feel spacious now he just kicks them away and even if his pants, shirt and socks start feeling bigger and slgihtly heavier he just ignores it until it's too late.

"Ha, we're winning even if it's 2v3, we're just too good. Ethan is taking his time though.. I hope he is taking a shower, sometimes it just gets too rough like now.. wait, why am I not reaching the floor? No! That serum!" 

Henry is just muttering to himself, first bragging about his gaming skills but then noticing something was wrong when he finally looks away from the screen, first to see if Ethan hadn't come back yet, and then to notice what was happening to him. By the time he realizes the shrinking accelerates and suddenly he's nowhere to be seen, where he was previously seated now you can only see his clothes, and a small bump below them

"What the? Oh shoot, I am tiny now!" Henry struggles against the fabric of his shirt until he finds an exit and crawls outside of it. Sitting a top of his clothes he realizes he is still on the couch and everything now looms over him, the armrests, the laptops, the bags of food Ethan had laying there.

"Okay Henry, calm down. I just need to call Oliver, get Ethan's help when he comes back and everything will be fixed.. How small am I now? and what's that smell?.. ugh, no way, it just gets worse from down here" Henry talks to himself to not fall in panic as he slowly examines the things around him trying to guess his height. He figures out he's about 3 inches, toy sized as his brother told him. Walking around he notices the slight but more intense smell of sweat coming from Ethan's side of the couch and flinches, but patiently waits for him as part of his plan.

What happens next?