Okay but why

Maybe it's like having sex, since he doesn't need to touch himself to get all excited and feel the hands rubbing etc.

It may be just laziness, easier to let the other person do to "work" for you, and just enjoy the ride!

Plus since he has that power, then why not use it? Since he can't get rid of it either.

Oh, I could think of a couple of a reasons why not...huge invasion of privacy, not having control of when these sexual urges do take over you because it's connected to the other person. I think it'd be easier to just experience and satisfy your own sexual desires, unless his sexual desire is to vicariously experience other people's sexual climaxes (which is kind of creepy in of itself).

And unless he's admitted that he's gay, it's kind of odd that he'd choose to experience other male's most intimate moments. No matter the gender, they're still different individuals and in a way it's a sexual experience involving the other person as well. So it could be construed as having sex with the other person, too.

Eh, oh well, I'm not taking it too seriously since this is BL, but this has to be the most yaoi-ish plot I've come across yet, lol.

This is in reference to your remark thinking that it was kind of odd that he'd choose to experience male's most intimate moments unless he's gay - think about it. He may only allow eye-contact for men he thinks don't have intimate relationships going on with other people, but that satisfy themselves (and maybe he's thinking that they satisfy themselves by means of a straight mind-set, or men that are in relationships with women).
He said before he didn't like copying girls, and acknowledged one of the reasons is because they usually want something inside of them to climax (which she did, thus he experienced insertion in the only place he can [his ass]), whereas a male just jerks himself off or inserts it into someone else without taking it themselves.

I don't think it's like he's experiencing sex with the other person per-se (which would be ten-fold more weird/disgusting if you allowed yourself to stare at animals knowing what could happen), just that he's experiencing the arousal and pleasure they're feeling simultaneously as though what's happening to them is instead happening to him.

When he looked at the cat and sent it off initially assuming it was a male, he questioned if the cat was actually female, which proved to be problematic. Because the cat was female and went into heat for the specific purpose of reproduction, he couldn't stop himself from feeling the same desire to be "impregnated", hence he said it allowed to the only person there to hear the "mating cry".

TL;DR - He doesn't experience the sexual desires/pleasures as though he's with who he copies, but experiences it as though he IS them. Therefore, the fact he is partial to copying specific men means he is partial to penetrating rather than being penetrated (hence his discomfort when the girl he copied decided to insert into herself, and his questioning if the cat was actually female).

No, I did understand that part as well, which is why I mentioned that he was vicariously experiencing someone else's very intimate and private moment. Well, in this case, I guess it wouldn't be technically be vicarious since he's directly feeling their sensations. I'm just confused to the intent of his doing so and why. Given that he's simultaneously experiencing their sexual moments, I, again, question why he needs to do so when he should have his own sexual desires, no?

The only difference between getting off himself and living someone else's sexual moment is the inclusion of another person. Does he get off trying to be a creep and intruding on another individual's moment of climax (when he seems perfectly capable of doing so himself) or is there some part of him that secretly enjoys having a partner in crime when this moment of climax occurs?

Ah well, it's not really a big deal. I just find the plot device to be a little too yaoi logic driven. No offense to anyone who likes the premise, of course. I still like Sachimo and hope to see more scanlations of her other works, I just don't think I can get into this one.

Ah, if it's a reasoning you're looking for, I'm afraid you won't find it here. The only one you'd get is why he chooses not to copy his friend/neighbor.
Personally, if I had that ability, I'd do it just because I wouldn't have to use anything to climax LOL I could just hang and enjoy the ride. I can't speak for anyone else, but I probably wouldn't even be thinking of the person I copied during that experience unless they were there and I could touch them physically, otherwise my senses would be soo overloaded that I would just block out the thought.
I've seen the raws up to the end and, while there is a cutesy relationship involved, it is basically just a yaoi.

I guess I should add that there may have been some sort of explanation as to why he decided to copy people in the raws rather than go through the trouble of getting himself off, but I can't read Chinese so I dunno!

Hehe, well, I mean for a straight guy, there's nothing much else to use but his hand, right? lol. I could kind of understand why this would be easier, but at the same time, he can't seem to control when this occurs, so he's at the mercy of the other person and when they do get off, so it could be awfully inconvenient in that respect. And you know, the whole intrusion of privacy and everything...

You're right, there could possibly be more to it and why he has this power and why he has to use it. Guess we'll just have to wait and see (though I'll probably be checking out on this one). Thanks for the discussion :D

Yep! Looks like he does indeed say that he copies because after he cut his hair he was physically incapable of getting himself off, so I guess that's that lol.

lol, well, at least we know he has a reason for doing so ╮(￣▽￣)╭