Lost Virgin (Nagi Wataru)
It's a spinoff manga, about a guy who stalks another guy, he wants to apologize for what he did in the previous manga to that guy but instead gets threatened by the guys friend. That friend then also takes him out for a drink and they end up having sex, pretty good.
Chiguhagu Love Sick
1st story: about a guy that gets turned on by getting chased by a cop after seeing a porn of a cop molesting and raping a school girl in a park. He also gets caught by a police in a park while he is masturbating. 2nd story: A guy starts fantasizing about his male teacher.
My Uncle