I have been stationed in the desert for two months now. I met a girl named Jackie at the chow hall one day. Jackie is a 5'5" blonde with a gorgeous 23 year old body. She has a 35-24-35 body that is built to last. She works out all the time and I see her in the gym quite often. She is extremely friendly and outgoing; she's a total doll. Jackie and I were talking at lunch one day and decided to work out together. So we met at the gym that night and she agreed to do my normal workout.
My normal workout consists of doing 100 squats as the start of a total body workout. I lift weights every other day as part of a routine in training for triathlons. I also swim, ride bike and run a lot, so I am in great shape for being 38 years old. We start our workout and by the time we get to the fourth set of squats Jackie's legs are feeling it. She gets to the 20th repetition and gets stuck on the way up. My arms are under Jackie's as I mimic her squats to spot her. I start to try and assist Jackie up and her ass pushes into my crotch. My cock instantly starts to harden against the pressure of her extremely firm ass. She finishes the rep and puts the bar back on the rack.
I am looking at her ass and I look up catching her glancing at my crotch. We both smile at each other and continue the workout. We get done with our workout and are extremely sweaty; so we agree to take showers then meet up for some munchies at the chow hall. I go back to my room and strip down to a towel. I start the shower running and hear knocking at my door. I wrap the towel around my waist and answer the door. To my great surprise it's Jackie in her workout clothes. She tells me the showers in her dorm are all full and wonders if she can shower here. I enthusiastically agree and ask if she wants to shower first, she says, "No that's all right, it looks as if you need it more than I do right now". My cock is now rising again and the towel is straining against my cock.