Nemaki

Hello!
I want to find a yaoi I've read before. Bottom was quite buff put pretty, I think with dark blue hair or something. He had some kind of curse where he was in "heat" maybe, but he didn't want anyone to find out so he ran away from the castle he worked for (as a knight commander or something like that) cause he was ashamed.
But then a godly beast decide to help him, he has the form of a wolf but he can turn human. He's buff too, I think white haired. He's really nice but maybe naive, maybe he was a young god?
Anyway they decide to travel together and everytme bottom goes into heat, top helps him by "mating" with him.
It was quite long, does someone know this yaoi?

Hey! I want to find a yaoi I've read before. It was between 2 students, but top was a bit older than bottom. Bottom is gay, has a petite figure and can be mistaken as a girl, he's sleeping with his teacher sometimes. He's got an older sister who's going out with a guy, who is the top cause later they'll fall in love with each other. The day they meet, bottom collapse cause it's too hot and top "saves" him, that's a bit of a reason why bottom falls in love with him, but also because they really get along well. But since top is going out with his sister, bottom decides to avoid him to not destroy their relationship. Top feels sad about that but later they meet again and decide to go out for real, after top and bottom's sister decide to break up. The sister feels jealous at first, but then she lets it go cause she loves her brother.
I think bottom and his sister didn't have parents cause there was a weird uncle who took care of them lol.
Does someone know this yaoi?