A rule on relationships.

Men can challenge each other's for their girlfriends. They time themselves and the one that can make her cum the fastest will be her boyfriend and she will love him as much as her previous boyfriend. If a challenge is denied, the girl will break up with the one denying it immediately.

"Kyle, I challenge you for Trish's love. Do you accept the challenge? " Josh said.

Kyle was now squirming awkwardly, if he refused he would lose her anyway, but he had little change to win considering how outgunned he was.

"Kyle what are you doing? Do you want me to break up with you? You have to fight to keep me like a real man. Just remember your special move to nd you stand a good chance. " she told him.

" You're right honey. There is more to make a girl cum than a big dick. I accept your challenge. Can I go first as she is my girlfriend? " he asked Josh.

"Sorry dude! You know the rules it is a coin flip." replied Josh, somehow aware of this detail about a practice that didn't exist five minutes ago. Given the size of his dick, his special move would probably be very embarrassing if he went second and with his desire to go first Josh knew he guessed right.

Kyle chose head and Josh chose to cheat using a trick he learned from friend doing stage magic and get it to fall on tail. Following the ancient rules of the the sex challenge all contestants stripped totally naked, Kyle was tall and muscular but his dick was as absurdly small and ridiculous that Josh's was big.

"Don't worry Kyle, nothing is lost. Just focus on your turn. " encouraged Trish as she was impaling herself on Josh's monster cock.

Josh was at little risk of accidently cumming top soon considering he just painted her face with semen a few minutes before. In no time the thrusts of his large member in her tight pussy had her moaning.

"You can stop now, she just came! " said Kyle.

"Don't be ridiculous, he has the right to finish inside of me, it's in the rules and you know that." retorted Trish. The clock had been stopped at 5m37s but Josh then took his time to make sure to cum in her pussy. He then carefully slid out of her while she nearly collapsed on the couch from his vigorous fucking.

"Honey, could you maybe take a shower before my turn? " he asked her.

" That would be interrupting the challenge and you'd be forfeit. " she told him. People seemed very serious with the rules of this thing. Josh understood his request though. With a dick so small the only way Kyle could hope to make her cum would be with his mouth. And with the present Josh just left in her it would be very embarrassing. If he thought a sloppy kiss was a problem he had now a full cream pie to eat.