What do you think? Is it one session or multiple?

So my fiance and I have a TON of sex. He's got this magic penis and I love it. So most of the time we go at it, and then we'll just lay there for a minute and he'll get hard again without pulling out of me and we'll go again. Sometimes 3 or 4 times before he pulls out. We'll get up, pee, clean the mess, and go right back to it doing the same thing. So my question for you guys is that one sex because he never pulled out? or is it multiple because there were a bunch of orgasms? We were talking about it last night and I said I'd ask all of you. :)