I read this in the author's fanbox about Mikoto's mom: Surprisingly, she has not had a boyfriend since becoming a widow. The reason is that even if it is fine for her, she thinks that having another man in the house would be a great source of stress for her daughter, Mikoto. Mikoto is always her first priority. That is why she feels safe directing her lustful desires towards Takase, whom Mikoto trusts
Huuuhhh, so Makoto-momma is open for business? Too bad Takase-kun looks like a "bad-boy" version Makoto-poppa lol (& no wonder she acts so strange around him)
The mom's picture cannot be a selfie because she wasn't holding the phone, and I doubt her daughter would take her photo knowing that her "soon-to-be" boyfriend is in contact with her.
Ooooohhh look at me I'm Takase, I have a big titty childhood friend who's in love with me and her big tittied mom also directs her lust towards me and sends me bikini pics.
Never tell me God doesn't play favorites.