Can someone tell me the of the manga that I have read before?

It's in a high school setting and both are students and also the seme is originally straight but I'm not sure about the uke since it's been a while I have read it.

The seme is originally a playboy(?) or maybe has a lot of experience. The uke asked when the seme is going to stick it in but the seme just thought that sx between two guys are thigh sx and just rubbing out together.