I think the one who wins gets to fuck the other at the end.
But, during the wrestling, the way you win is by getting points... While you wrestle, you have to try to abuse the other person sexually. The more you do this successfully, the more points your rack up. At the end, the one with the most points gets to fuck the other.
If she wanted to leave a mark on your face, she wanted to rub her pussy on your face during one of these wrestling matches in attempt to earn points.
i'm no expert, but i think this is a sport i can enjoy