Several sluts and studs start an anal race. How do you define a winner? Solution is here - Step or distance meter application, sensors on women's arms give info the the computer - smart phones or pc - whatever. Check youtube or google. The bodies are moving when fucking same as when they are walking or running. Sensors count distance they fucked, callories burnt. It adds a lot of intensivity and objectively gives you the winner - who gets financial bonus. Of course a lot depends on men who push her, but she also needs to add movement with her body. These races and intensivity may add entertainment to the scenes. Races can be in the following disciplines: blowjob, anal, vaginal, dp, dap, dpp. Let's put it this way - who will fuck longer distances within say 30 minutes. This will also help all participants loose some weight - health factor!!!!. But NOT in sport gear - should be in heels, stockings and make up. Sport looks will spoil everything.