They cut that part where she supposed to have a 3some with some random dude. But that was actually just a fluke, she’s still a virgin up to this time, just for him to feel the guilt. I understand what the story is about, she’s not a pervert after all, she’s trying her best to let the dude cheat but actually she likes him and so the dude. But the fact that the dude’s gf is her close friend, she can’t do something while the dude also had a relationship w/her they end up doing the cheating thing. Though I haven’t completed reading the manga because it went back to a flashback that made every thing why it is at the moment, their current situation. Though I am expecting that they will be caught and who knows either they will be in a true relationship or not is either to be decided, because the story at some point became mellow dramatic, I want hentai not a drama! LOL!

that intro has no right begin that good