I'm perfectly fine with him banging his friend's single friends.
Not so much [ spoiler ] the marroed one with a son, since he's NTR-ing the unmet son. But that's fine too after a while since she'd have cheated regardless.
But my main issue is with him not simply continuing an ecchi relationship with his step mom and instead going all the way and having her commit adultery, now the writer will probably turn the dad character into a jerk to justify this, or the family will break apart.
The way the MC turned into a mindless lyst demon before being slapped disappointed me, I guess I'm disappointed in his lack of moral fibre, even if he goes around boinking random women. （￣へ￣）
Beautiful