Well from my point of view it also is rape, cause one of them is not consenting (he's unconscious) so even if it's the uke that is raping (and there's no "physical damage" so to speek) the uke is still doing it... like, how could you touch someone else's body without his consent? There's so many people that don't get this, it makes me really sad...
If the sexual act is not consensual, it’s rape. It doesn't matter who commits the crime, if the other person didn’t give his permission, it’s rape.
The same can be said for heterosexual couples: even men can be raped by women.
So I saw this too times in really popular mangas (My Suha, December Rain) were the uke practically raped the seme. In the first one the uke put the semes dick inside him while he was sleeping and in the other one the uke sucked the semes dick while he was also sleeping (and they werent in a relationship or anything at that time). I thought that this kinda stuff doesn't get enough attention because it's also rape in my opinion. But what do you think, is this rape or is it okay because they are ukes?