Responses
Following
http://www.mangago.zone/read-manga/momoiro_junjou_danshi/
i found it after a month (๑•ㅂ•)و✧
Thank you :)
-it is yaoi manga
-there are 2 stories, all of them are high school students
-semes are cousins and look alike, black haired
-In the second story, seme is straight playboy and want to play around with uke but in a little while, captivated by uke
-there was a misunderstanding that 2 semes are lover but actually older cousin was teaching him about sex
-And first couple had visited seme's countyside home and meet his a lot of friends