Can't leave her husband out of this

After I finally pulled my cock from her throat, thick strings of spit connected her lips to the head. She stayed on her knees, chest heaving, mascara running, the ripped red blouse hanging open. The black leather collar looked perfect around her flushed neck. I tilted her chin up with two fingers."How does it taste?" I asked, voice low. She swallowed, still catching her breath. Her voice came out rough and honest. "It tastes like heaven. Better than anything I’ve ever had. It tastes like I belong on it." I smirked and pulled her up to her feet. She swayed, the unused strapon still harnessed under her short leather skirt, bobbing slightly."We shouldn’t leave your husband out of all the fun...should we?" I said, nodding toward him. He was still bent over the desk in nothing but those white lace panties, soft ass on display, waiting like the forgotten afterthought he was. I turned her around, guided her forward until the tip of her black strapon pressed right against the thin lace covering his hole. She tensed when she realized what I was doing."Push it in..." I ordered quietly.She hesitated only a second, then leaned forward. The head of her strapon stretched the lace and sank into her husband’s ass. He let out a muffled, humiliating sound against the desk. I didn’t give either of them time to adjust.I shoved her skirt higher, spat on my cock, and lined up with her own tight hole. One hard thrust and I buried myself deep in her ass, the force driving her forward and sinking her strapon even deeper into him. She cried out - a raw, broken mix of stretch and shock. I started fucking her hard and deep, every stroke of my thick cock forcing her to fuck her husband at the same time. The desk creaked under the double rhythm. Wet, filthy sounds filled the office - skin on skin, her choked moans, his helpless grunts. I leaned over her back, mouth close to her ear, and whispered while I pounded her ass. "Listen to that. Your husband is moaning at your 'big' cock. How does it feel knowing your dick is nowhere big as mine?” She gasped as I bottomed out again. “It - ah - feels like I was never really in control…" "That’s right. You were just playing. Now you’re my little fucktoy with a plastic dick strapped on, and you’re using it on him because I told you to.” I grabbed her ponytail and yanked her head back, slamming deeper. “Tell me who this ass belongs to." "You" she moaned, voice high and needy. "It’s yours—fuck, you’re so deep...""Louder. Let him hear it while you stretch his hole.""It’s yours!" she cried out, the words breaking every time my hips cracked against her. "My ass is yours, my mouth is yours - oh god, keep fucking me...”I kept the pace, long strokes that made her strapon spear in and out of her husband in perfect time with my cock in her. Her walls clenched around me every time I talked to her like that, getting wetter, tighter, more desperate."Look at you..." I growled, one hand reaching around to squeeze her small tit. “Domme for five minutes, now you’re just a sleeve for my cock while you peg your own husband. Say thank you.""Thank you..." she whimpered immediately, pushing back to meet my thrusts. "Thank you for fucking my ass...thank you for making me do this..." I laughed darkly against her neck and fucked her even harder, driving both of them against the desk, the wet slap of my hips and the helpless sounds of the two of them filling the entire office. I kept slamming into her ass, every heavy thrust driving her strapon deeper into her husband’s hole. The desk rocked hard. Her soft moans mixed with his muffled, humiliating grunts. I didn’t let up for a second."Feel that?" I growled against her ear, hips cracking against her cheeks. "Every time I bury this thick cock in your ass, you’re forced to fuck him. You’re not the Domme anymore...you’re just my little cock-sleeve I'm using to fuck him.."She whimpered, pushing back onto me anyway. "I - I know… fuck, you’re so much bigger...""Say it properly..." I yanked her ponytail harder, arching her back so I could drive even deeper. "Tell me what you are..." "I’m your fucktoy..." she cried out, voice breaking on every thrust. "I’m just a hole for your cock""That’s right.” I reached around, slapped her small tit, then pinched the nipple hard enough to make her yelp. "You thought this plastic dick made you the one in charge. Look at you now...bent over, taking every inch up your tight ass while you peg the man you used to dominate. How’s that power feel?""It feels gone..." she moaned, completely honest. "It feels like it never belonged to me. Your cock owns me..." I laughed low and fucked her harder, the wet slap of my hips against her ass filling the office. "Damn right it does. This ass is mine. This throat is mine. That dripping cunt is mine. And now you’re going to keep fucking your husband’s hole until I decide otherwise. Tell him thank you for the view while I ruin you."She turned her head just enough toward him, still getting railed. "Th-thank you for the view..." she gasped, the words shaky and filthy. "And thank YOU for using me like this...""Good girl..." I slowed just long enough to grind deep, letting her feel every thick inch, then started pounding again. "Listen to how wet you are. Your pussy’s dripping down your thighs while I rearrange your ass. You love being the middle of this - my cock in you, your toy in him. Say it.""I love it..." she sobbed, walls clenching hard around me. "I love being in the middle - love feeling you fuck me so deep while I fuck him-please don’t stop..." "Not a chance..." I grabbed both her hips and really started wrecking her, long, brutal strokes that forced her strapon in and out of her husband in perfect, humiliating rhythm. "You’re going to take this cock until you can’t think straight. Until the only word left in your head is Master. Say it now.""Master—" she cried, loud and desperate. "Master, fuck my ass—use me—make me fuck him harder—"I grinned against the back of her neck and gave her exactly that, slamming into her without mercy.