Why wouldn't you?

Not wasting a second, you happily accept that invitation and slip your dick out of her pussy. Stacy had teased you with the promise of anal when you were sexting each other, but you didn't necessarily think it was going to happen tonight. You were perfectly fine with her pussy, but there's no way in hell you're passing up anal if she's asking you for it. Climbing out from behind her, she rolls onto her side to give you access to her little, brown bunghole. Not seeing any lube handy, you bring your face close to her ass and spit onto her hole before lining up your head with her opening and pushing into her. "Uuunnnhhh!" you moan out loud at the change in pressure around your cock as you sink further into her tunnel.

"Oh yeah, you like that, don't you? You like how my tight asshole feels around your big, hard, cock? Your little wife doesn't let you fuck her in the ass, does she? Well I'm gonna show you what you've been missing all these years." She starts to turn, climbing onto her hands and knees into doggy position then reaches back and spreads her ass cheek apart.

Grabbing hold of her arm, you start pushing your dick farther into her anal sheath, starting slowly at first, unsure how hard she'll be able to take it, but her sphincter involuntarily clenches around you, fighting you and not yet fully accepting your intrusion.

"Oh fuck! I can't relax enough! I'm not used to something this big in my ass! Let me be on top. Roll onto your back for me." You hug around her waist and manage to keep your dick halfway inside her as the two of you roll together until she's pulled herself on top of you. As she settles into place, you feel her relax and you start to sink deeper inside.

"Oooh, that's more like it." she says as she begins rubbing her clit. "Next time I'll remember my lube and I'll let you have all the control. Tonight, though, you'll have to be OK with me on top."

"I'm more than OK with you on top tonight." you tell her as you start slipping yourself in and out of her. "As long as you make sure you keep that promise of letting me be in control next time."

"Oh fuck yes! I'm dripping just thinking about you having your way with my ass." she tells you before returning to the present. "Shit that's good! God, I love how you're filling me up! Ooohhh! Ooohhh! Yeah!..." she begins panting as her ass accommodates to your girth, allowing you to pick up your pace and plunge deeper inside her.

The two of you begin grunting and groaning, caring about nothing but the pleasure you're feeling, and your bodies begin to glisten with sweat. As her groaning becomes louder, you feel your stomach tighten and you realize you won't last much longer. "Oh fuck Stacy, I'm gonna cum soon!" you tell her, continuing to pump in and out of her and giving her the opportunity to prepare herself for your release.

"I want to taste you! Shoot it in my mouth! Give me your hot, salty load!" she says as she climbs off of you and gets down onto her knees.

As soon as she climbed off of you, you began pumping your shaft, and you can feel your load boiling up in your loins. Standing up over her, you have just enough time to aim your dick at her mouth before your first blast spews forth, landing on her tongue.

Stacy calls out encouragement as you squeeze your eyes shut and pump more and more of your spunk into her mouth, onto her chin, and on her chest. "Holy shit that's a lot of cum! Yeah baby! Cover me with your load! Make me your little whore!"

Eventually your spasms slow and you're able to open your eyes. Chest heaving, you take in the site below you of Stacy on her knees, looking up at you with a satisfied smile on her face, cum splattered on her chest and a glob of it dripping down her chin.

Collapsing onto the bed, you watch as Stacy climbs to her feet, then stare at her shapely ass as she moves to the bathroom to clean herself up. You hear the sound of water running for a few minutes before she returns to the room and joins you on the bed. Trailing her fingers over your chest, she plants little kisses on your shoulder while telling you what a fantastic lover you were and how she can't wait until you're able to get together again. Unfortunately, that time is not now and the two of you begrudgingly agree that you should start heading home.

Stacy leaves first, with you deciding to wait a few minutes before leaving yourself, just in case someone is around. Once you've deemed enough time has passed, you leave the room, hop in your car, and start your drive home. As you pull into your driveway, you note that all the lights in the house are off, except for the front porch, letting you know that, more than likely, everyone is asleep. You quietly enter the house and make your way to your master bathroom where you get undressed and brush your teeth, before climbing into bed with your sleeping, unsuspecting wife with a shit-eating grin on your face as you close your eyes yourself.