Everyone's sex drive is different. 3-4 times a week doesn't seem like that much to me. If it is "brutal" perhaps proper preparations should be made? It sounds like either the foreplay isn't working or the partner who feels pain should see a doctor. Sex shouldn't hurt, and you can have it 3-4 times a day if you have the energy (probably in the honeymoon phase).
The part of Yaoi sex that concerns me is that they hardly ever show the use of lube. I'm fine with Yata's high sex drive, but he should learn to use lube. But it is just fiction.
Ah you'really right
I just finished my little research about it
And when the preparation show up on Manga it'll be become whole volume *lol
It's same with gay porn too
Is that really fine to have sex so intens and 3-4 times a week ? In straight relationship its basicaly brutal when its come to yata chan , and momo use his back