She knows your room, your fetish, has tan lines and volunteers to get you off,plus let's the girlfriend slide!?!?!? This is the ultimate lucky bastard!!!
Now you are officially cheating. No luv, that happened the moment you stuck your mouth around his D. This isnt tbe Bill Clinton School of cheating and non sexual relations you know. Just make sure you keep the stained uniform in a sealed bag for later DNA checks yeah?
...Hmm. I feel like he'd probably get along better with a girl like her who likes and understands him for who he is and his fetishes for what it is, but kind of holds back because her friend is his girlfriend?
I'd feel a bit bad for the girlfriend, but I'd say this girl is probably more of a keeper...But then again I don't know much about Kaori herself...
A sequel where we get to find out more would be really nice...