Two Months Later

"Oh god, I can't believe they're this deep!" Anna cries, her eyes shut in concentration, pain, and pleasure. All four of your fingers are down to the knuckles inside of her pussy. You thumb dances circles around her clit each time you slide your hand forward. As your hand pulls back, it drains juices from deep within. Coated with copious amounts of her own excitement, it slides back inside her, deep. You thrust your hand into her more and more each time; you want your entire fist inside your ex before the end. You think it's finally be stretched enough, and without a word you slip your thumb into Anna as well and bury your whole hand even deeper.

Anna gasps and moans. She looks down at your hand, or more like your wrist, and marvels that you are literally fisting her pussy.

"Phil... I, I don't think I can take it! Oh god, your whole hand is inside me!" She throws her head back once more and tries to spread her legs wider to accommodate your punishing fist.

"You already are taking it," you affirm, "and now I need you to cum for me."

You begin to pump your entire fist faster and faster inside of her gaping pussy. The walls inside stretch around your hand, inviting it inward and trying to expel it all at once. The sloshing sounds of your hand fill the room. Those sounds are joined by the cries of Anna as she nears her orgasm. You wiggle your fingers inside her and find her spot, rubbing steadily and firmly as you thrust. Your ex lets out one final scream and then lurches forward in climax.

Her entire body convulses and she begins to pant in guttural moans. Her pussy, already tight against your entire fist, clenches tight around you and refuses to release your hand. It quivers and quakes as you feel her juices flood around you, trying to find an escape. For an entire minute your bodies are completely entangled, her lips holding you captive. Soon her body begins to relax, however, and the whimpering moans begin to die down. Pulling back gingerly, you finally manage to free yourself with a loud, whooshing pop. You stare at your hard work intently.

Anna's pussy is literally gaping open for you. You can see deeper inside her hole than any reasonable man should ever expect to. It is spent beyond belief, and it seems to pulsate erratically as you stare. Is it fear or excitement? Free of your hand, the juices that had built up inside begin to flow like a bubbling brook out of the hole you just excavated. For the second time this week, Anna will have to change the sheets.

"I told you I could get my entire fist inside you," you proclaim with a wicked grin.

Anna sits up on her elbows and gazes down at her ravaged pussy, "I didn't say you wouldn't be able to. I told you I wasn't sure I wanted you to." She wipes beads of sweat from her forehead as she looks up to your face with a slightly defeated look. It's the look of a girl who bit off more than she could chew. You think back on what lead to the current arrangement.

It's been about two months since your ex first reached out to you and asked you to come over. Against your better judgement you went and, long story short, you ended up fucking her. Of course, that was her plan all along. She secretly filmed you and her and had planned to use it against you to keep the arrangement going. Of course, what she hadn't planned on was how aggressively sexual you get when you're angry, and how much she liked it.

You do feel bad for Penny, who is still an amazing person to date and be with, but you don't have the heart to tell her that your ex hates her guts and used her voluptuous body to seduce you into cheating. Anna definitely proved her point, that your relationship isn't as perfect as the social media posts seemed to show. How could it be when you literally just finished fisting your ex? But that's okay, you'll take your frustrations out on Anna, just as you have been these last two months, and she'll love it.

Your mind returns to the present. Anna's pussy is slowly returning to normal and has stopped spilling girl-juice onto the bed. You slip off the bed, clean your hand, and begin to get dressed.

"Going so soon? You haven't even cum yet," she asks with a look of confusion. Her eyes are still a bit glazed over from the beating her pussy just took.

"I'm saving it up for something special. Next time you'll find out what." And without a goodbye you turn and leave. "Next time" will be here before she knows it, and you wonder if she'll be able to take it.