Slow and exploratory it may be, but when you've fantasised about this exact scenario as many times as Erwin has, that's going to be all it takes. Everything feels heightened, bright and exaggerated, teetering on the absolute edge of obliteration.

Erwin is not subtle in the slightest about how this is affecting him. Every touch, every movement that he likes, he makes it clear how it gets to him. It might not be the best dataset, since he likes everything, but it's something.

It's one of the swirling motions around the head of his cock that does him in. Erwin squeezes the back of Levi's neck, his breath stuttering out in rapid little bursts, and pulls his hips back to get himself out of Levi's mouth and hopefully out of the way. Then there's no stopping things, and Erwin leans against the shower wall, shuddering through his orgasm.