In me, in me, in me!

You start to use hard strokes, slamming your body against Diane's on every stroke. You can feel the impact through her tits, which try to swing out of your hands.

"Do you like to get fucked hard?" you ask.

"Ahh, uh-huh!" Diane moans. "A cheating wife deserves to be fucked hard. Hard. She needs it!"

You keep up a steady pace, fucking her hard and bare. It feels great.

"Fuh, uh, uh, fuck yeah!" Diane moans as you pound her from behind, your balls slapping her clit. Her dark chestnut hair tosses in waves as her head dips and rises from your strokes.

After a couple of minutes of doggy fucking, you feel your cock start to swell.

"Oh you feel so big!" she says.

Without slowing down, you ask, "Where do you want it?"

"In me in me in me!" she cries out.

"Oh yeah," you moan. That's all you need to hear. You feel a shift inside your body, and your hips tense, throwing your pelvis forward into Diane for the last few strokes. "Uh...! Uh...! Uh...!" you groan, spearing her deeply as you fill Mrs. Diane Westerland's cheating pussy with come.

"Uhhhaaaooowww!" she groans in satisfaction. "Ohhhh yes. Fill me up."

Your cock head is sensitive now, you have to stop stroking but maybe you can stay in for a moment and... You release Diane's tits and reach down around her hip, fingertips in the sodden hair of her mound. And there it is.

Here, clitty-clitty-clitty, you think to yourself. You tickle her slippery little bean. Diane's hips jolt, her head snaps up and drops down, and her voice whines as she lets go into an orgasm.

"Eeeeee...!" she cries. Diane's pussy clamps down on you, milking out the final drops as she comes. Your cock comes out as her hips buck, sliding out with a pop on a dribble of your mixed juices, white and gooey. She kneels there, moaning and coming, as you tickle more spasms out of her.

Finally Diane collapses forward onto the bed. You're more than ready to join her.

"Oh my god, what a fuck," she says.

You lie there in the dim twilight of her cabana.

There's a wet pop and hiss from Diane.

"Sorry!" Diane says. She giggles. "What a fuck," she says. "You pumped me so hard I got air up my pussy. I never had that before."

"Hmmm," you say, to show you're listening, though you aren't, really.

"Mm-hmmmm. I know someone I have to recommend this to."

"Uh-huh," you say drowsily.

"It's work this, work that, all the stupid people she has to deal with. The next time my sister calls, I'll just tell her to get fucked!" She giggles again.

An exotic bird trills. She turns to get it and flinches as her ankle twinges. "Could you get that, John?" she asks.

You fight yourself upright, take the phone from her purse. DENISE, the display says as it rings. What an annoyance, to get a reminder of the boss you're trying to forget. The number's even from your area code. You hand it to Diane.

"Oh it's my sister!" Diane says.

You get a clutch of uneasiness inside.

Diane chatters away for a while. "And this nice man saved me after I twisted my ankle. And after Bill stood me up for dinner. Yes. After Bill blew me off he stayed around. And..." she giggles. "No. Yes, I did. Yes! I recommend it, absolutely. You need to get fucked, Denise."

Diane sits up straighter and turns her head, bringing her into profile against the window.

"Ah ha ha, he just blew you off and went on vacation? Well, you were probably too hard on him."

Now you know who Diane reminds you of. That profile, that laugh, as little as you hear it from Denise. That Denise. Diane is your boss's sister.

"Heh, where did he go?" Diane asks her sister. "No really. If I see him, do you want me to send him back? What's his name? John Doe? Ah ha ha ha."

You've just given your boss's sister the fuck of the year behind her husband's back and now she's bragging about it. How many ways have you screwed up? Your back tenses up and you swallow. You count your breaths, trying to settle down.

At least Diane is still smiling for the moment.