Tell her (consensual)

You unlock the door to the gym, and stand imposingly over her. She lowers the leg press and takes out an earbud, letting it hang by the wire.

"Yes?" She says, annoyed.

You stammer, sort of processing the end of the world. "Hey. You might know me."

"You live next door. What's up?"

You try to be suave, and collected. "Have you heard the news? You might want to check your phone."

She looks at your worried expression, and pulls her phone out of her pocket. "I didn't, I've been trying to focus on exercise... Holy shit." She is in disbelief. She stands up and gets off the leg press machine, checking other apps to confirm her concern. "Holy shit. 17 hours?"

You blink. Yeah, I suppose it was about 17 hours now. Damn, every second counts.

"Yeah. Anyhow, I've always thought you were really hot in those leggings..." I trail off as she starts sobbing, then laughing, then looking at me.

"And you want to fuck me, right? It's the end of the world and you're looking for someone to have the final ride with?"

I can't read her face.

"That's the long and short of it, yeah," I say timidly.

She laughs again, and says, "Here? Now?". Before I can answer, she wipes the sweat off of her face, steps around the machine, and gets down on her knees. "Promise to watch the world burn with me?"

"I promise--" she undoes my belt, I'm staring down at the fantasy I think about every goddamn night.

"Good."

She unzips your slacks, and undoes the weird two-button clasp that curses dress pants. Before you can think, her mouth is wrapped around your cock. You feel her tongue dancing, her throat opening to let you in. Your whole body feels like lightning as she bobs her face up and down on your dick.

You grab her ponytail, and go deep inside her throat. She gags, coughs, and pulls back, only to swallow it down again. She looks up at you, eyes open wide, lashes fluttering. She pulls you to the floor, and you easily slide her little white shirt up over her head. You grab the sports bra next, pulling it up to reveal moderate, respectable tits. She blushes a bit and says, "it's been a while since someone's seen me... Y'know."

You pull her leggings down to reveal a cute little polkadot pair of pink and white panties. She's tiny and skinny, can't be more than 5' 1". You grab her waist and pull her back to the ground. You pull her panties down and stare in awe at this woman you only dreamed about. She's shaved, but not recently, and it smells like she's been exercising for an hour. You grab her ankles and slide yourself inside her. She moans softly, letting a little moan out with every inch. You go slowly, feeling her tight little pussy. You get that last inch inside her, and feel her pussy tremble as you slide back out.

You grab what there is of her tits, and use them as handlebars while you ride her.

It's pure ecstacy. You close your eyes and feel yourself getting close.