If dissected further, the panel where lil bro touched uke here:
http://www.mangago.zone/read-manga/no_color_baby/mi/6b80c535b8dbaf27d1cfc9452113fd17_chapter-1/9/
meant he didn't like it but was too shocked to shove lil bro away.
Also, when MC uke called on Shit Lover Boy here:
http://www.mangago.zone/read-manga/no_color_baby/mi/6b80c535b8dbaf27d1cfc9452113fd17_chapter-1/12/
I think MC uke was more concerned with Lover Boy interacting with lil bro than he is concerned with lil bro. WHICH tells me that when you are more concerned with a person who obviously does not deserve it means there's a person who is worse than that guy; and I think lil bro is much worse, he definitely screwed MC uke in someway.
You're absolutely right. Well spotted. Though in the first instance I can't really tell where exactly lil' bro is touching. Wherever it is, the uke sure isn't happy about it. But I think we can be pretty sure that the brother is going to be Trouble like a plague.
I couldn't either but it is not where he touched Mashiro, just the mere fact he was touching Mashiro was the issue, I think. We definitely have a sick lil bro here.
First off want to apologize as I didn't catch any of the names. I think it fairly obvious that the uke is pretending to be a player when he isn't, and was more than a little hurt by the pervert seme. So I'm definitely hoping he gets together with the new seme.
On the subject of little bro, what kind of sibling offers themselves as a substitute when they have barely met the guy? Frankly little bro landed himself in that mess and should get himself out. I did not like the way he interfered in his brother's life. And perhaps there was good reason he wasn't told where his brother was.