I’ve been in an on-again, off-again FWB situation with my ex-bf’s best friend (“AJ”) who has a longterm girlfriend. I initially started fucking AJ as revenge since my ex cheated on me but he was always jealous of my attraction to AJ. We never actually told my ex that I fucked AJ, but it’s been a fun secret to keep over the years and we suspect that my ex knows but can’t bear to ask us. AJ also loves holding this secret over my ex.
We’ve always been attracted to each other and we have an incredible sex life but our personalities clash so we never pursued anything more. AJ is also in a longterm relationship but I’ll call off our situationship once he decides to be more serious with his girlfriend. We know that it’s wrong but he fucks me like his own personal sex doll and makes me orgasm harder than any other man.