What I'm looking for are male/female scenes that somehow involve a guy fucking a girl with one-on-one action until he delivers a full cumshot (not one of those silly Mike Adriano tricks where "dude cums four times" but it's one tiny spurt every time without even trying to shoot his entire wad), and then he moves on to fucking a second girl that he hadn't even touched before. And he might run out of gas with girl #2 and have to quit, or he might keep it up to go the distance until he's able to cum a second time (probably much smaller cumshot than the first) -- either way, it is all about him not getting to fuck girl #2 until after he's finished with girl #1.

This sort of thing can be done either "gonzo" or as the plot of a vignette:

1) Just a simple gonzo scene where the guy is given the challenge of fucking multiple women as long as he can stay hard and keep cumming -- he can't go on to the next girl until he's cum with the current one. If the guy has some sort of superhuman stamina and rate of prostate secretion, in theory you could line up three or more women and see how far he can get.

2) Two female roommates get to talking about one of their boyfriends, who has been texting the other roommate saying he knew his girlfriend was telling her about the size of his cock, and he'll show it to her if she wants to see it while the girlfriend is asleep. The girlfriend scoffs at the idea he finds the other roommate more attractive and the roommate feels insulted when the girlfriend points out the text was sent after she'd been out of town for several days, so he must have just been looking to hook up with any girl that would get him off. After an emotional argument, the girlfriend accepts a dare: after she's fucked her boyfriend and done her best to jerk him off until he's completely empty, she'll bring in the roommate and offer him the chance to fuck her, as a way of proving that he doesn't feel any real attraction to her.

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