Responses
I think I saw that line somewhere here... well similar?
http://www.mangago.zone/read-manga/revenge/mh/v01/c003/26
Anyways ., I might be totally wrong tho xD
beta
The seme only get excited by doing what he have to do as a seme. One day, the uke wanted to do a blowjob to him to get him excited and it didn't work. The seme was like "If you want to excite me, let me do you. " (something like that).