I'm usually not into the really rough stuff, but Denzi adamantly insists on the face-fucking, she says that's what really turns her on, and she won't let me stop until her eyes are watering and she's fingered herself to another orgasm. I stood up on the bed and Denzi raised herself up to her knees. "Look at that cock, Harold. That's a real cock, and Charlie's gonna fuck my face with it."
"Let him, you fucking whore." This was all routine at this point. I held the base of my cock with my fingers and slapped it against her cheek. "Gimme that cock, Charlie. Jam it down my throat 'til I puke." I never went that far, she'd cough and gag a little, but I didn't want to hurt her. I slapped my dick on her lips and she opened her mouth wide. I slapped against her tongue a couple times and then slowly shoved myself halfway into her mouth. She closed around me and swirled her tongue while I put my hand on top of her head and pushed further until she sputtered. I backed off and she took a breath, then I pushed in further until she heaved, and held her there until she heaved a second time. I pulled out fast and she gasped for breath.
"All the way this time," she rasped. "Jam it down my fucking throat!"
She raised up and leaned forward, tilting her head back to give me a better angle, and I sunk deep until her nose pressed against my abdomen. She heaved and clutched at my ass, pulling me even harder into her face until she couldn't take it any more and pulled back gasping. I gathered her hair behind her head, and held her still as I slowly started fucking her mouth. Occasionally her teeth would catch me, which I like quite a lot, and every few strokes I would push further in until she pulled back coughing. We weren't done until she told me I was a "good boy" and deserved a reward.
Sometimes she wanted me on top, sometimes behind. Sometimes she wanted to ride me. This time she wanted her legs up on one shoulder, my arm squeezing them together so she was tight around me, but the goal was to just give her orgasms until Harold was ready to cum. He always said the same thing, "fill her, Charlie, fill that filthy whore full of spunk so I don't have to." Corny, sure, but Denzi would always instantly respond, flexing and squeezing and bringing me to climax surprisingly quickly.
After I came, Harold would always tell her "clean him up good, Denzi," and that meant I would lie down and she would lick and suck the rest of my cum from my dick while he came on her ass. After he finished, she'd wipe it up into her hand. Sometimes she would wipe it off on a towel or shirt from the hamper, sometimes she would lick it up and swallow. One time, after a particularly long session that had us changing positions frequently, she flung it back at his face and they both laughed like it was the funniest thing ever. I didn't care what they did, I got to fuck Denzi Shapiro with only minimal verbal intrusion from her husband, and that was just fine with me.