@Mushroom_X Some Japanese toilets are really advanced. They have things like heated seats, automatic bidet and so on, that's what the controls are for. (Water temp, seat temp, activate bidet, etc.) They're pretty awesome.
I always enjoy seeing gender-benders address some of the reality of such a change. I also think Riko's overthinking things here: if she ends up finding herself attracted to boys it'll be a gradual thing and feel natural when it happens, much the same way she discovered her attraction to girls growing up as a boy. It's also quite possible that'll never happen and she'll remain attracted to girls.
I think part of her problem is that's she's only now starting to realize how many "girly" qualities she had as a man, and is struggling to accept that. Ironically that seems to be harder for her to accept than suddenly being in a girl's body. That's probably pretty accurate, because society in general expects men to
not have girly qualities and men tend to not think of themselves as having any, even when they do.