Responses
I think your observation is spot on in some aspects. The uke is supposed to be sensitive all over their body as the receiver and that is why they're naked; but apparently the seme only feels it in his penis so he doesn't need to do much more than unzip his pants. But who is the submissive really? The seme usually works hard to make the uke feel good so they can be relaxed during penetration and the uke just pants and eggs him on.
I’m the only one that is annoyed by the fact that when in Yaoi they do a quickie, the uke is always completely nude while seme wear some clothes. Like the uke is the submissive one and had no dignity while the seme is big and masculine so he still wear some clothes. I don’t know if I give the idea, it’s not that I don’t like when they do it but this is a particular that annoy me.