This is why some people are so against the cutting of the jacuzzi assjob, because it shows there is hope for pee pees everywhere without viagra. Nami is SG's equivalent so far.
I however think much better to have scenes with Nami behind closed doors considering how stressed she is of being discovered. And the bathroom previous hint Nika might learn how to please a woman without his pee pee pretty early on in the chapter, like the first scene. (bathroom scene is probably the first night at Nicks is my feeling, given the lighting.
I'm pretty sure Ocean has said there is a particular lewd that will happen in Ch1, and there are renders that suggest other lewds, and he is doing scenes for most of the LI's to start the different paths, so presumably there will be some lewd content even in the first chapter. I can imagine there will be some embarrassing situations where he can't get it up and he starts wanting AMber to fix him, rather than just going because Noji says so.
I also think, even if you're not on the CHeeto's path, it's likely she won't keep her hands off him and will keep trying to get a rise out of him. Who knows if there aren't multiple chances to get on a LI's path?
About the hair, well, Emilio is magical, that's why all the hair in SG is superb.