I met up with a friend to casually hookup the other day and ended up vibing with her friend a little more so we ended up hooking up instead. I honestly felt like I may have made a mistake and stepped on my friends toes so I made the situation a little worse by hooking up with her the next day, In the same house.

The first girl I hooked up with obviously found out and asked me if I'd stop hooking up with our mutual friend. Wasn't sure how to respond so I said that I had my own reservations about hooking up with her but that I couldn't promise not to since she was also seeing other guys and it wouldn't be fair. She seemed to understand and dropped it but I wonder if this was a shit test and if I handled it well.

If I were to decide I liked this girl would I want to agree to not fuck our mutual friend or did I already say the right thing by not letting her tell me who to fuck so early on?