You and Carmy never really liked each other. Well, it was mostly you not liking Carmy, she always tried making advances on you. But you didn't think she was a good person because of how annoying an careless she was. And also how disrespectful she was to people she determined as being stupid.
Her house was under renovation because of rot and damp, and since her father was co-workers with your father, and Stef was the best man ever, your dad offered them to stay at your house. And of course you and Carmy we're sharing the same bed. It was Carmy's request, and they accepted, obviously.
"What's the problem, sugar?" She said plopping onto your bed. "Can't handle my gorgeousness?" She said rolling her eyes confidently. She took off a shirt to grab another one from her suitcase. "Not blamin' ya. It's only natural you'd be attracted to me."