His wife...in a compromising position.

Despite his reservations about it, Sam took the extra five minutes to walk down to the cafe, bought the mythic brownies his wife had asked for and even helped himself to an expresso while he was there. God knows he needed it after another day toiling away in his cubicle.

The drive home was mostly uneventful, though the silence only made his thoughts turn inward. His neighbourhood was decent, friendly, if boring people living around him. His house was fine, if unspectacular. It was close to a school so that made it convenient for their daughter. It was just the three of them so they didn't need a lot of space. It was...fine. Serviceable. His life was "ok". He had nothing to especially complain about.

But with almost half of his life having ticked over, was that really good enough? When he finally croaked and was called to meet the big man in the sky, what could he say about his time on earth? That he lived a "functional" existence. Christ, how pathetic could he be? He should have seized the day and all that crap that those motivational speakers talk about on tv. Instead he was just killing time with boring shit until congestive heart failure or cancer eventually took him out.

He was still wrestling with this existential crisis as he pulled up in his driveway, lost in his own little world as he entered the front door.

"That you Hon?"

His wife's voice startled him out of his increasingly bleak thoughts. "Uh yeah," he called after a minute, walking into the kitchen, "got your brownies!"

"That's great!" She called from somewhere down the hall, "could you come to the bedroom please?"

Sam rolled his eyes, put the brownies away, and strode down the hall. It was always something. Fetch her something from the store, pack things in the attic, change this lightbulb...

The sight he was greeted with stopped all thoughts dead.

Kneeling on their marital bed was his wife, pant less and reaching backwards to part the bubble of her ass to reveal her winking asshole.

While she had never been a complete knockout, Julie had been an attractive teenager when she and Sam first started hooking up and the years had been fairly kind to her. Her honey blonde hair lost none of its shine twenty years on, and while motherhood had added a bit of weight to her figure and her breasts had lost some of their perkiness, her ass had become a proper booty. A peachy treasure chest waiting to be plundered.

Sam was speechless. In fact, he was utterly absent cognitive thought and might have suffered a small brain aneurysm. A small eternity passed before he could formulate words.

"You...uh," he worked his jaw, "what the hell is going on?"

Julie looked over her shoulder at him, expression casual. "You got the brownies, so you get anal."

"Are you...fucking with me right now?" He looked around, "is this a prank?"

"Huh? You did me a favour so you get anal." Julie frowned, "why are you being so weird? C'mon we need to hurry before Stella gets home." She spread her cheeks a farther apart, "I've already lubed up."

And Sam noticed that she absolutely had. He blinked several times, his brain trying to connect the synapses. Julie had never offered him anal sex before and was pretty prudish when it came being naked around him, even after two decades of matrimony. Hell, even when they were teens and more sexually active she hadn't let him go backdoor.

Maybe it was a birthday present? Julie had tried to get all cutesy about his coming fortieth. Had she seen his lowered mood and felt sorry for him? Was this her attempt to get him out of his rut?

Sam decided then and there not to look this gift horse in the mouth, or rather ass, and went about unbuckling his pants. Just the sight of his wife in such a position had gotten him rock hard, his heart and dick pulsing with excitement.

He reached out and caressed his wife's considerable ass. Lined himself up to the winking star. "You ready babe?"

"Ready as I'll ever be," she replied in an unenthusiastic voice. "Just go slow."

The head of his cock slowly speared the asshole and Sam was greeted by a warm, tight sensation the likes of which he hadn't known before. A groan escaped his wife, but otherwise she made no complaint. Slowly, inch by inch his dick pushed its way though the constricting confines of Julie's ass until finally he felt her plump checks rest against his groin.

The sensation was incredible. The warm, crushing tightness almost took Sam's breath away as he felt Julie clench around his dick rhythmically. He ran his hands over his wife's ass, took a breath and then slowly pulled himself out until only his head remained. He could feel it sucking him in desperately, hungrily.

And then he started to move.

Thrusting in shallow at first, he began to pick up the pace. His cock was a spear, piercing the juicy hide of his wife, who groaned and huffed at his **** but otherwise mostly just knelt on the bed. He gripped her hips and thrust forward with increased aggression, his pleasure building.

"Oh, fuck," he breathed, "Jesus, Julie your ass is so good..."

"Are you...ah...are...you..." Julie's words were halting as Sam pillaged her ass, "uughh...are you almost...done?"

Sam let out a breathless chuckle as he continued pounding away. "C'mon, babe...you know you love it!"

There was a seconds pause, followed by...a moan? A deep moan in fact. Julie's face shifted into one of utter rapture. "Ohhhh fuuuuuck...I love it!"

Suddenly his wife began actively meeting his thrusts, throwing her ass back onto his cock with all the effort she could muster. Her rectum clenching around him like a hungry python.

"Fuck Hon, fuck!" She was practically shouting at this point, throwing her head back in joy and clawing at the bed sheet like an animal. "Fuck me Hon, uuugh! Fuck my ass! Fuck it! Fuuuuck it!"

The pace at which she was going, coupled with her shrieking cries of lust were enough to hastened Sam's end. He felt his release near as white hot flames of pleasure shot through his body from his constricted dick.

"That's it!" Julie shrieked, her whole demeanour verging on hysteria. "Fill me, uuuuuuuh! Fuuuckin fill my ass! Do it! Stuff my ass! Fuck!!!! Ahhhh!"

Sam saw stars, his vision swam and emptied his balls deep in his wife's hungry asshole. Which in turn seemed to set off some kind of anal orgasm from Julie, who went into a semi-epileptic fit of pleasure, thrashing on the bed like a madwoman before having the energy drain from her.

They both collapsed, Sam on his wife, still joined in their act of sodomy. They lay like that for several moments, sweaty and breathing heavily. Until Julie finally pushed him off her and sat up, reaching for a pair of discarded jeans and once again trapping her glorious, cum dripping booty.

Sam watched her, heart still beating like a drum. "What are you doing?"

Julie's expression was neutral for a second before she shot him her usual bland smile. "What do you mean Hon? I've got to get dinner started!"