Responses
Banana scandal
http://www.mangago.me/read-manga/the_good_teacher/?PAzW
i can't remember the names of the rest but if i do, i'll come back to this post :) you can search 'virgin seme' in tags on mangago for more luck, though
I literally just read one like this. Supre cute. Here you go:
http://www.mangago.me/read-manga/doutei_nana_kun_foreign_love/
BL mangas where the seme is a virgin and/or inexperienced (I just wanna see a seme fumble his way into schlip schlopping)