Stepping Stone
Not bad, pretty good actully, lots of hard sex. There are 2 books after this one.... Bk2 - Kawaige (Maybe I'm you're stepping stone: Loveliness) Bk3 - Otonage (Adultness)
Kawaige
Good book! The first story is about Mogi Kousei, Kuzuya's sempai from Stepping Stone. Apart from Kousei's story, there is also a couple of friends & co-workers. Also a one shot at the end involving 2 classmates & their teacher - good story! Bk1 - Stepping Stone (I'm not you're stepping stone: Shameless) Bk3 - Otonage (Adultness)
Hisho no Oshigoto