So back in November my friend and I decided to become FWB and I lost my virginity to him. He ended it beginning of December. Back in January he asked for a one time thing and I agreed. Now my sex drive is really high and every time I see him all I want to do is sleep with him. But the thing is with him the first time we have sex he's pretty fast to cum so we tried to have sex twice in one day cause the second time around is better. So how do I bring that up to him explaining that I want a one time thing but have sex twice in one day?