Margaret got her a membership at the local gym. At the gym they showed her how to use the various pieces of circuit training equipment. Katie would co...plete her workout every evening, and then would walk over to the weight room and observe how the serious members of the gym would work their bodies.One evening she stood in the doorway admiring the chiseled body of one of off-duty instructors. After completing her set, the woman called her over."You've been watching me for the last couple of. Good, one hand was by the bedpost. Carefully she tied a stocking to that bedpost and then tied it around his left wrist. Okay, one down and three to go. Just then he rolled onto his side, fortunately in the direction of the secured wrist. She carefully and quietly moved around the bed securing the other stockings to the other three bedposts. She then secured His left ankle with a stocking. He stirred and she jumped back but he only settled over onto his back. Sarah moved back to the bed and. He tries to close his legs but I force them open and quickly attack his zipper. Taking his nine-inch dick out isn’t even a challenge as he gives in to what is happening. With his cock in my hand, I begin to stroke it gently and tease the tip with my tongue. Moans of pleasure trickle out of him as I take his cock in my mouth and suck. I can taste the bit of pre-cum leaking from his dick as I suck on his hard-on and begin to rub on his balls. I can now feel my pussy getting wet as I feel him. It stung but became more and more pleasant the more he moved it in and out faster and harder. I came so close to cuming from this pounding I was shaking..Master let me rest a minute, from that use, and grabbed my whip and proceeded to whip my buttocks and thighs, with each fall of the whip brought the familiar sting but so much pleasure, I could just feel my cunt filling up with juices.At this point I was instructed to reach back and spread my buttocks open. Where Master applied more lube and I.