Choose Jayne to go first

"You first," you say, nodding towards Jayne, making her smirk and Mary pout.
Mary pulls out her mobile phone and sets the stop watch going.

"Okay, you have two minutes," she announces, and Jayne wraps her strong hand around your stiff dick and commences pumping.

You tip back your head and moan as she roughly works your dick, her tight grip dragging up your unlubed cock right from the base to the swollen tip and back again, over and over.

"Mmm, you like it rough, do you? Lot's of guys do.. just you relax and cum for me, and you'll find out how rough it can get..."

You open your eyes again and look across at her, her wicked, shining eyes and the deep dark valley between her tanned breasts, that sexy tattoo...

"Oh yeah, look at me.. imagine what I'll do to you if you cum for me. boy, I'll screw you senseless.. there's not a guy I've fucked who hasn't been left.."

She tightens her fist, squeezing your cock hard right under the bulging head.

"Totally.. broken."

You moan again, and Mary says -

"Thirty seconds to go.."

Jayne looks at you with a calculating smile, and starts jacking at your dick at a furious speed, her tanned hand a blur against your throbbing red cock, and you close your eyes and moan again. The rough stimulation is painful, it's so intense, but it's dragging you inexorably towards orgasm.. man, this girl really knows what she's doing...

"Five seconds.." announces Mary, and then suddenly an incredible bolt of pain shoots through you from the base of your aching cock.

You let out a strangled, almost silent scream, and your eyes snap open to see Jayne hand clenched tight around your balls, pulling them hard away from your body. Your dick remains as hard as ever, but you're suddenly a long way from cumming.

"You cheat!" snaps Mary.

"All's fair in wanking and war," retorts Jayne, "Okay, your turn."

Mary's soft warm hands envelop your dick, and she begins to slowly wank you.

"See what she's like?" Mary asks you, as the pain fades and pleasure begins to return as you stare at her huge expanse of milky white cleavage, "You don't want to end up at her mercy.. cum for me..."

As her soft hands slip rhythmically over and over your dick, you start to think that you might be able to...

"One minute left" announces Jayne.