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"Alright, where do I sign?" You say to Natalie as you let go of her head. Your now fully engaged cock slides out of her throat with a small gag, then she smiles up at you cutely with tear filled eyes; a thick strand of spit still connects you to her cherry red lips. She beams with excitement at having made a sale.

She hands you a clipboard with an empty membership form on it from who knows where, then bends over at the waist in front of you, allowing you to use her slender back to steady your writing. You slide your wet cock up her pert ass easily, making her to jump slightly as you begin to fill out the form. You thrust gently into her as you write your name and address on her back.

"Where's the water fountain?" A young man says as he wanders up to Natalie and pushes his stiff prick between her lips, asking her a dumb question as a pretense to fuck her mouth for a while. She makes several attempts to answer him while being violated from both ends.

*Mmmph* "It's in the..." *GCK MMMMppph* "It's in..." *GCK GCK GCK* "It's....." *GCK* "It...." *MMMPH GCK GCK GCK GCK* The man tries his best to keep her from answering for as long as possible by spearing her throat every time she tries to speak. Her smile never waivers and she even tries to remain still for you during his ****. He gets bored after a few minutes and wanders off without cumming or listening to the actual answer to his question.

Natalie doesn't seem to mind, quickly going back to a fake moan to keep your arousal while you fill out your paper work. Her job is to keep the men here as long as possible, both for herself and the other women, since men are more rare at the gym. You begin to think you might like it here.

You finish all but the signature, then begin to fuck the young receptionist in the ass more earnestly. Her fake moaning intensifies, even playing with herself while trying to remain still for the clipboard. You sign your name on the line by quickly jerking off on the form, covering the paper in a meager dose.

Far from minding your strange signature, Natalie quickly turns around and takes the clipboard in one hand and your cock in the other. She excitedly cleans you and the form off with her tongue, not minding the taste as she swallows every drop of cum and the remains of her rear from your dick. She continues to try to fellate you, even as you lose your erection, used to the quick recharge of the men at the gym. You end up pushing her away, more sensitive than ever.

"Oh right! You'll want one of these!" She says to you brightly, handing you a green sports drink with the gym's logo on the label. Where was she hiding that? "Since you're new here you might wanna drink no more than hal..." *GCK*

You push her face back into her crotch as you chug down the entire thing without listening. You can see why the other guys want to shut her up. She holds your limp cock in her mouth again, still gently working it with her tongue, while you finish drinking your stamina enhancing tonic in several loud gulps. You thank her by reaching down and shoving the empty bottle halfway into her cunt for a makeshift trash can. She moans.

You sit back on a nearby piece of gym equipment, still exhausted from the back to back orgasms you've had today. You allow Natalie to give you a thorough tongue cleaning, guiding her by the hair to lap at the hard to reach spots under your filthy balls while you watch the other members go at it during their respective workouts. You begin to twitch already. The drink works!

By the time Natalie has licked every inch of your groin clean, your cock stands firmly at attention. You celebrate by shoving it down her throat and mashing her nose into your pelvis harder than ever. She looks up at you excitedly and works the empty bottle in and out of her snatch while wiggling her tight butt at you enticingly. Didn't you just give this slut a donation?

You look at the other girls around you while you **** her to fiercely headbutt you several times by yanking at her hair. Her smile remains, breaking only when she sticks her tongue out to lap at your dripping balls. She has great customer service skills!

You want to move on to try another bitch at the gym, but something about this girl's attitude makes you want to see how much she can take while still smiling like that...