Not everyone has the same sex drive. There's nothing wrong with with being sexually active either, she's stated time and time again before it's okay he doesn't have to force himself to. She's just not satisfied, you can't really blame her for wanting more ╮(00)╭
It just seems kinda like double standards, you know? "I'm not satisfied, but you don't have to force yourself..." it just seems kinda selfish. If I were in the relationship, I'd stay on the down-low if I felt unsatisfied. The embarassment felt in my partner for something he couldn't control wouldn't be worth mentioning dissatisfaction:( but that's just me. I know people at that age can be immature still, just naïve, and/or sex maniacs xD
I guess the author just wants to throw problems between the two. She could just buy a dildo or something...?
Y'know, I'm the same age (and gender) as Mikari, but I would never want to have sex as much as she does. You'd think she'd be able to understand that Kaga doesn't have the same amount of stamina as her. And I can easily imagine having Kaga drink supplements all the time is embarrassing and degrading to him. I bet it makes him feel like he's not man enough, or a "real man" or whatever.
I was kinda upset when I saw that Mikari said "I wish that we could have sex, not just be together..." or something like that. It's like; WOMAN BE GRATEFUL YOU HAVE A MAN LIKE HIM IN THE FIRST PLACE WTF?!?!?!
I would be so happy and so grateful to have an Oyaji to snuggle and cook and talk with... sex isn't everything in a relationship T^T