Two friends with benefits
I used to have two FWBs who I would see occasionally. One was married and early 40s, one was mid 20s. I used to go meet one at a bar or adult video store, fuck him, and then call the other on my way home and have him meet me there and then fuck him. Why why WHY did I end it with those guys? God I loved fucking those guys. Nothing like great sex on demand ;)