Burst out of the blocks

You've done enough rowing to know that if you set a decent pace early, it effects your average speed less if you slacken later. You watch the display and are happy to note you're going at just over 28 strokes a minute as you pass the 300 metre mark.

"You know your rowing. Just for that, I'm going to start early," Kate whispers in your ear. At this gym, there are shouters, shriekers, screamers and squealers, it's unusual to have a trainer so soft and intimate.

Sure enough, her right hand sneaks down. Kate starts running her fingers over your exposed cock, just lightly, teasingly, distractingly. This distracts you enough that your pace slows.

"Pick up the pace or I pick up my hand," she warns. That's motivation enough for you to row harder and soon you're up to 26 strokes a minute. You concentrate on the sensation of the supermodel's fingers dancing over your cock. You feel her warm breath flutter the hair over your right ear. Her smooth legs wrapped up in tight black lycra firmly hold her in place as you go back and forth on the rowing machine, while Kate's fingers go up and down on your stiffening cock.

"Go for a kilometre. If you can stay above 25 strokes a minute, I'll consider you well and truly warmed up. If not, we might need to do another warm-up exercise before we get into the thrust of our work-out."