I’m a college prof and for about 4 years, I have been having casual threesomes with 2 girls who were good friends in high school and reconnected in college.

It started when one was 18 and the other 20 and both are hot AF.

The 24 year old is now engaged and the 22 year old will graduate in the fall but we decided to meet up one last time before we all go our separate ways.

I am not in love with either of them but have grown close to the 22 year old and we have been hooking up on and off for the past 4 years on our own as well.

I want to try and continue with the 22 year old but really want another girl with her because the threesomes are hot AF.

Part of me feels like a sex addict and part of me feels like a dirty old man.

Not sure how to ask the 22 year old if she has any other friends or should I just be satisfied with her moving forward?