Big-Titted Wife Begs Sister-in-Law for Strap-On

Simone stood at the cabin window and watched the late light slide across the lake, her heavy breasts shifting under the thin cotton of her tank top every time she breathed. Thirty-two, married, and usually content, she had spent the last three months unable to stop picturing her sister-in-law’s hands on her. Valentina was twenty-nine, leaner, sharper, with a low voice that made Simone’s nipples tighten even when they were only arguing about groceries. Their husbands, Victor and Silas, had left at dawn for the fishing trip, the truck’s taillights vanishing down the gravel road, and the silence that followed had felt thick enough to touch.

All afternoon the two women had moved around each other in the small kitchen and the open living room. Valentina’s hip had brushed Simone’s ass when they both reached for the same mug. Simone had felt the heat of it long after. She kept catching Valentina looking at the deep cleavage the tank top refused to hide, and each glance sent a fresh pulse between her thighs. By dusk her panties were soaked. She pressed her thighs together and imagined Valentina bending her over the back of the couch, a thick strap-on stretching her open while those strong hands slapped her swinging tits. The fantasy had lived in her head for months; alone with the woman who starred in it, the ache had become unbearable.

Valentina came in from the porch, barefoot, hair still damp from a quick swim. She wore only a faded button-down left open over a sports bra and cutoff shorts. “You’re quiet,” she said, dropping onto the rug in front of the cold fireplace. “Usually you’re talking Victor’s ear off by now.”

Simone turned from the window. The movement made her breasts sway heavily. “Just thinking.”

“About what?”

She almost lied. Instead she crossed the room and sat on the opposite end of the couch, close enough that their knees nearly touched. “Past lovers. The ones who knew what they were doing.”

Valentina’s mouth curved. “Dangerous topic when the husbands are gone.”

“Maybe that’s why I brought it up.” Simone’s voice came out lower than she intended. She told a short story about a woman in college who had pinned her wrists and fucked her with a toy until she cried. She left out names and kept her eyes on Valentina’s mouth. “I still think about how full I felt. How she didn’t ask. She just took.”

Valentina’s breathing changed. She leaned back on her hands, thighs spreading a little. “I used to keep a strap in my nightstand before I married Silas. Thick one. Realistic. I liked watching a woman’s ass bounce on it while I told her she was mine for the night.” Her gaze dropped to Simone’s chest, then lower. “You’ve got the kind of body that would look obscene on it. Those tits swinging. That ass.”

Heat flooded Simone’s face and cunt at once. “I’ve wanted you to do it,” she said, the words tumbling out. “For months. I lie next to Victor and picture you bending me over and fucking me until I can’t think. I get so wet I have to bite the pillow. I want you to take me hard with a strap-on, Valentina. Please.”

Valentina’s eyes darkened. She rose onto her knees on the rug and crawled the short distance until she was between Simone’s spread legs. “I’ve wanted to claim this body since the first time I saw you in that red dress at the wedding. Wanted to shove my fingers in your mouth and my cock in your cunt and make you admit you’re a needy slut for your sister-in-law.” She slid both hands up Simone’s thighs, under the hem of the tank, and cupped the heavy undersides of her breasts. “Say it again.”

“Fuck me with your strap-on,” Simone whispered. “Hard. I need it.”

Valentina kissed her. The kiss was deep and filthy from the first second, tongue pushing in, teeth catching Simone’s lower lip. Simone moaned into it and arched, pressing her tits into those palms. Valentina squeezed roughly, thumbs rolling the stiff nipples through the cotton until Simone was squirming. One hand left her breast, shoved the tank up, and bared both breasts completely. They spilled out, full and soft, nipples dark and tight. Valentina broke the kiss to suck one into her mouth, biting just hard enough to make Simone gasp, then switched to the other while her free hand pushed between Simone’s thighs and rubbed her soaked panties.

“On your knees,” Valentina said against her skin. “Beg properly.”

Simone slid off the couch at once, knees hitting the rug. She looked up, tits hanging, chest heaving. “Please, Valentina. Put the strap-on on and fuck my pussy. I’ve been dripping for you all day. Use me. Make me take every inch. I want to be your slut this weekend. Please.”

Valentina stood, stripped the shorts and sports bra off in quick motions, and crossed to the duffel she had brought. She came back wearing a black harness already buckled around her hips, a thick, realistic dildo jutting from it—long, veined, the head broad and glistening with lube she had slicked on while Simone watched. She stroked it once, eyes on Simone’s open mouth. “Couch. Bend over. Ass up.”

Simone scrambled to obey. She shoved her panties down and kicked them away, then folded herself over the arm of the couch so her tits hung free and her ass was presented. The first slap landed hard across one cheek. She cried out, cunt clenching. Valentina lined the head up and pushed in slowly, stretching her, the thickness forcing a broken moan from her throat. Once she was seated deep, Valentina gripped Simone’s hips and started to thrust.

The pace was immediate and rough. Each stroke drove the dildo to the hilt, the harness slapping against Simone’s ass, the wet sound of her pussy loud in the quiet cabin. Simone’s massive tits swung and slapped together with every impact. Valentina reached around, grabbed one, and squeezed hard enough to leave marks, then slapped the side of it so the flesh jumped. “Look at these fucking tits,” she growled. “Bouncing like you were made to be pounded. You love it, don’t you? Love your sister-in-law’s cock splitting you open.”

“Yes—fuck—yes, harder,” Simone sobbed. Her fingers clawed the couch cushions. Juice ran down her thighs. Valentina slapped the other tit, then both, alternating with deep, grinding thrusts that rubbed the base of the dildo against Simone’s clit on every stroke in. Simone’s moans turned high and desperate. She pushed back, taking it, begging without words until the words returned. “Fuck me like the slut I am. Don’t stop. Please don’t stop.”

Valentina pulled out suddenly. Simone whimpered at the emptiness. “On the rug. Reverse. I want to watch that ass.”

Simone dropped to her hands and knees, then turned and straddled Valentina’s hips as the other woman lay back. She reached between them, guided the slick head to her entrance, and sank down in one long slide. The angle let the dildo press deep against her front wall. She planted her feet and began to ride, reverse cowgirl, ass bouncing, the heavy cheeks spreading and clapping. Valentina gripped them, spreading her wider, thumbs digging in while she watched the thick shaft disappear and reappear, shiny with Simone’s arousal.

“Fuck, look at you,” Valentina said, voice rough. “Riding my cock like you can’t get enough. Those tits must be swinging so hard. Bounce harder. Show me how bad you need it.”

Simone obeyed, lifting and dropping faster, the wet slap of her ass against Valentina’s thighs filling the room. Her breasts ached from the motion, nipples dragging air. She reached back and braced on Valentina’s thighs, changing the angle so every descent ground her clit. Pleasure coiled tight. She was close already, trembling, but Valentina sat up, wrapped an arm around her waist, and rolled them.

Simone landed on her back on the rug, legs spread. Valentina followed, still buried deep, and caught both of Simone’s wrists. She pinned them above Simone’s head with one hand, the other bracing beside her shoulder, and started to thrust again—long, hard strokes that shoved Simone up the rug an inch at a time. The position let Valentina watch her face and her tits at once. She fucked her steadily, then faster, the dildo pistoning, Simone’s breasts jolting with every impact.

“Beg,” Valentina ordered. “Tell me what you are.”

“Your slut,” Simone gasped. “Your needy fucking slut. Fuck me harder. Please, Valentina, pound my pussy. I need to come on your cock. Use me. Don’t be gentle. I can take it. I want it. Fuck me like you own me.”

Valentina’s hips snapped harder. She released one wrist only long enough to slap the side of Simone’s breast again, then pinned both wrists once more and drove deep, grinding. Simone’s back arched. The orgasm hit like a wave breaking—her cunt clamped down around the thrusting length, thighs shaking, a loud, broken cry tearing out of her as she came and came, juice gushing around the dildo, vision whiting at the edges. Valentina kept fucking her through it, drawing the spasms out until Simone was sobbing and oversensitive and still pushing up for more.

Only when the aftershocks faded did Valentina slow and pull out. She unbuckled the harness, tossed the glistening strap-on aside, and swung a leg over Simone’s head. “Clean me up. Make me come.”

Simone opened her mouth eagerly. Valentina lowered herself onto her tongue, grinding her soaked cunt against Simone’s lips and nose. Simone licked broad and hungry, sucking the swollen clit, pushing her tongue inside, tasting both of them. Valentina rode her face with short, ruthless rolls of her hips, one hand braced on the rug, the other fisted in Simone’s hair. It didn’t take long. Her thighs clamped, her breath broke, and she came with a low, shuddering moan, flooding Simone’s mouth and chin while Simone kept licking, greedy for every pulse.

They collapsed sideways together on the rug, sweaty, limbs tangled. Valentina pulled Simone close and kissed her softly, tasting herself. For a long minute they only breathed. Then Valentina traced a finger down the slope of one breast and smiled against Simone’s mouth.

“This is only the beginning of our secret weekend,” she murmured. “How many times do you want me to strap back on and wreck this pretty cunt before they come home?”