Jax is feeling a little tense, and has been slacking on the gym lately, so he calls up a service to hire a personal trainer. That way he'll have to get sweaty, no excuses. Kristen loves to keep her ass firm and her tummy tight, so naturally she took a job as a fitness instructor. The minute Jax opens the door, Kristen can't help but stare. Fitness is the last thing on her mind when she gets a peek at the outline of a huge cock in Jax's shorts. The two were meant to work out, but instead they burn calories in a much more stimulating way. Both of their bodies get a full workout and the sweat starts to pour. Kristen doesn't do this with all of her clients, but Jax quickly becomes one of her favorites!