The house was quiet except for the low hum of the old air conditioner. Lena, twenty-four, stood in the kitchen in nothing but a thin tank top and panties, her nipples hard from the chill. Her step-sister Mia, twenty-six, had just come home from her shift, still in her tight work jeans and boots. They had grown up in the same house but never crossed the line until last month, when a late-night movie turned into hands sliding under blankets.
Mia dropped her keys on the counter and looked Lena up and down. “You waiting for me like that again?”
Lena didn’t answer with words. She stepped forward, grabbed Mia’s belt, and yanked her closer. Their mouths met hard, tongues pushing, teeth scraping. Mia’s hands went straight to Lena’s ass, squeezing the bare cheeks and pulling her tight against her thigh. Lena ground down, already wet, the cotton of her panties dragging over denim.
“Fuck, you’re soaked,” Mia muttered against her mouth. She shoved her hand down the front of Lena’s panties and found her clit, rubbing it in quick, rough circles. Lena’s knees buckled but Mia held her up, fingers sliding lower to push two inside without warning. Lena gasped and bit Mia’s shoulder through her shirt.
They didn’t make it to the bedroom. Mia spun Lena around and bent her over the kitchen table. The wood was cool under Lena’s cheek. Mia yanked the panties down to Lena’s knees and dropped to her knees behind her. Her tongue dragged up the length of Lena’s slit, tasting her, then pushed inside while her fingers worked Lena’s clit again. Lena moaned loud, hips rocking back against Mia’s face.
Mia stood up, unbuttoned her jeans, and pulled out the strap she had started wearing around the house for exactly this. She spat on the silicone cock and pressed the head against Lena’s entrance. One hard thrust and she was buried deep. Lena cried out, gripping the edge of the table. Mia fucked her fast and steady, one hand on Lena’s hip, the other reaching around to pinch her nipples through the tank top.
“Tell me you want it,” Mia growled.
“I want it,” Lena panted. “Fuck me harder, sis. Make me come on your cock.”
Mia slammed in deeper, the wet sound of skin and silicone filling the kitchen. Lena’s legs shook. When Mia reached down and rubbed her clit again, Lena came with a sharp, broken moan, her pussy clenching around the strap. Mia didn’t stop.

She kept thrusting through the orgasm until Lena was whimpering, then pulled out and spun her around again.
Lena dropped to her knees on the tile and took the strap into her mouth, tasting herself on it. Mia held her head and fucked her throat for a few strokes before pulling her up. They kissed again, messy and deep. Mia walked her backward toward the living room couch, stripping off her own clothes as they went.
On the couch Mia lay back and pulled Lena on top of her, straddling her face. Lena lowered her dripping cunt onto Mia’s mouth while she leaned forward to lick Mia’s own swollen clit. They moved together, tongues working in rhythm, fingers sliding in and out. The room smelled like sex and sweat. Lena came again first, thighs shaking around Mia’s head. Mia followed seconds later, hips jerking up as she groaned into Lena’s cunt.
They stayed like that for a minute, breathing hard. Then Mia pulled Lena down beside her, kissing her slower now, tasting each other on their tongues. Outside, the sun was setting. Inside, the house stayed quiet except for the sound of their slowing breaths and the occasional low laugh when one of them said something filthy about doing it again before their parents got home from work.