Okay, you know how ice skating is scored twice, once for artistic marks and again for technical ability? Here's what I'm picturing:
6 scenes per title, each featuring:
2 chicks
2 dicks
2 inventive outfits (on the women) for maximum tease/turn-on
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then, a timed competition.
both girls performing an identical act upon their assigned dick. The first girl to get her guy off wins. If this is done for a field of 24 girls, you'd have a series of movies right there, as the first round winners would meet each other for later installments using the pro sports playoff format. Let's see, the first round would take 2 movies (12 girls and 6 scenes per movie). That'd leave you with 12 girls for round 2 in movie #3. Then you'd have six finalists for movie #4, and you could make them do more in-depth events to determine an overall champion.

Oh yeah, the outfits would be part of the score. Like if a girl won by being first-to-bring-jizz out of her guy, she could still lose if the other girl's "artistic" score was greater. Say there were 12 seconds separating jizz one from jizz two. If the 2nd girl's technique was more erotic and her outfit was sexier, she might get 13 seconds subtracted from her time, allowing her to win the round with a better combined score.

It'd be a good series to release during the summer olympics or march madness, ya know?