For us it's usually the same scenario and more or less lasts about 20-30 minutes.
I always start just by cuddling him and making out with him for a good 5-10 minutes.
Making out and telling him outloud what a good boy he is and how much I love kissing him & how mommy's pussy needs to get stuffed. Talking dirty outloud always gets me really turned on. After that I just lay back and start touching my pussy and playing with some toys until I get drenched down there which usually happens really fast as we just had a makeout session with my boy. By the time I finish getting my pussy ready for him he is usually up on the bed sniffing around my wetness and starts eagerly licking me. He just loves my juice so he laps it up pretty fast and when I get on my knees and bend over he pretty much always just starts mouting me. More dirty talk about him making me his bitch which combined with his fast thrusts always makes me cum. This happens 2 sometimes 3 times before he gets tired and just licks me clean and lays down. We kiss for another few minutes when I thank him for making me happy and we cuddle.