Molested in the train

I really can't seem to track this manga.
First encounter is in the train, the uke was sleepy and its rush hour(?), then the seme offered his shoulder to him while standing of course. The uke reluctant at first but do it after all. And he smells the seme scent. Suddenly the uke feel that he been groped.
Second encounter is in a train, the uke face the wall, standing
Then he feels he is being groped again, and that scent he remember the seme. I think then the seme rub himself to him that he started to turn around and 'stop it--'(?) I think. The seme close the uke mouth with his right hand and his left unzipped the uke pants. The seme then thrust between his thighs in that train. Hmmmmmmm pretty erotic isn't it ε=ε=(ノ≧∇≦)ノ
Third encounter happens that the uke starts being conscious of the train groper, the seme. That when he saw him at waiting for the train he ran away, the seme ran after him and they stop at idk where but on the stair with a rail. They then fuck right then.
So who knows? (￣∇￣")