wait so by him teaching Yubin-ah to have "sex" he means they're going to have sex and Shin...

ginu is the top

yeah I agree he's the top, but Shin-Ginu is pretending to teach Yubin-Ah how to have normal sex with a girl, so I wonder how he's going to pull that off without doing the "girl" role

Ginu has an uke face, he's just taller than yubin, ginu would make a perfect uke doe

He is going to teach him by fucking him, he is not going to be the one getting fucked it's like " when u r with a girl u do whatever I'm doing to u" kinda thing but we'll we all know he got other plans

I meant well* not we'll

True because like on other mangas the seme also told the uke that I'm gonna teach u the way to have sex w a girl, so they fucked the uke n I was like how is that like with a girl, girls don't fuck u in the butt wtf ε=ε=(ノ≧∇≦)ノ

Ahaha Ikr

Lol yeah, I've thought the same thing too!
Shin-Ginu's reasoning was something like "you only have experience with your butt, so are you going to be able to do it with a girl? Here I'll show you!" But I guess he can still "show" him by fucking him lol!