Hey! I just can't remember a manga which is about the stepbrothers, their fathers in a relationship and they were going to live together. Same home but different doors in the building but inside is together. Seme was younger than uke and high schooler... Please Can You Help Me ??
http://www.mangago.me/read-manga/sexual_harassment_brothers/
I think it's this

I can't really remember but there was a manga which is partners were a friend at first. They met their work place, uke was silent, make up with girl and couldn't understand love. Seme was the one who fell in love first. They were working in showbiz or something as a hair maker or stylist
When seme and some famous girl's photos published, the uke realized that he loves his very first friend