I want to sleep with my best friend's ex-girlfriend. Is that wrong of me?
I mean, not really if they're broken up. He might disagree. How'd you 2 connect anyways?
We met online, got into a relationship, and she's hung out at my house.
If you're not worried about upsetting your friend, go for it. They're no longer an item, so she's available, I'd assume.
We've had some really nice times together, so sleeping with her is high on my list of priorities.
Give it a shot. Just make sure you protect yourself and everything is consensual.