I've been reading this forum and I see that most of the threads are dedicated to actresses and singers. This is good, but here is an idea: what do you think about fights between sports celebrities from not combat related sports?
There are a lot of known and gorgeous-looking ladies (many above 18 years old) in, for example, figure skating. They are athletes and all have thin figures, meaning that in a fight they would be showing great flexibility, resistance and speed with every punch having an effect.
Also there are a lot of great historical rivalries between some of them which could be played on the ring.
For example, Michelle Kwan vs Irina Slutskaya in a boxing match:
Or any of them against Sasha Cohen:
As another example, those ladies could have a spectacular fight in the ring
Carolina Kostner
Kiira Korpi