Some_one_normal's Questions (2)

I'm looking for this one yaoi manga that takes place in a school and they basically form a hierarchy based on what card you get. Like Kings and Queens are at the top and so on. Please let me know if you know the name!(づ￣ ³￣)づ

I saw it like a while back but no I can't find it but it's about this guy with a really nice ass and his roommate likes his ass and starts grabbing. I remember one part the guy tells everyone how great the other guy's ass is and everyone just starts grabbing him when they have a chance. If you know the name please let me know （/TДT)/