Kim and Busty love sex. The messier and dirtier, the better. They invited me round for a party. When I turned up, they were dressed like sluts in Basques, stockings and suspenders. Neither was wearing panties but each had a huge, black strap-on attached to their fannies. “Welcome to the Sex Factor” said Kim grinning. “Yeah, you gotta rate our fucking skills” laughed Busty. Grinning madly at each other, they started fondling each other’s big tits before licking and nibbling nipples. Moving down, they started to finger fuck, their pussies getting more and more wet with juices. They both leapt on the bed and went straight into a 69, pushing the strap-ons out the way so that they could lap up each other’s clam juices. “Let’s fuck” said Kim as she pushed the huge, black strap-on between Busty’s legs. Kim rammed Busty so hard that their tits were pressed tight together and Busty came quickly. Kim pulled out and the strap-on was glistening with cum. Bust got Kim on all fours and pounded her hard and fast until Kim’s pussy was dripping with cum. Licking the cum off each other’s strap-ons, Kim asked “Well?”. “You’re through to boot camp!” I replied, laughing.