Reminder that every night, these two are railed right in the pussy by their boyfriends.
imagine how humiliating it would to get a super cute GF only to find out shes just trying to make her brother jealous
>by their boyfriends
you mean boyfriendaragi
Crab interactions with Karen imply that she has at least some idea about that.
Maybe she doesn't know that they had sex but Araragi's sister comples is way too obvious.