I slammed the front door behind me and kicked off my boots, still tasting the whiskey from the bar. The house was dark except for the glow under Mom's bedroom door. She was supposed to be asleep. At twenty-two I figured I had the place to myself after Dad took my sister on that college tour. Wrong.
Mom's voice floated out low and rough. "Come in here, baby. I heard you come home."
I pushed the door open. She was sitting on the edge of the bed in nothing but a short silk robe that had fallen open at the top. Her heavy tits were half out, nipples already stiff. She held a glass of wine and her eyes were glassy.
"Lock it," she said.
I turned the lock. My cock was already thickening in my jeans. We had danced around this for months, ever since that drunk night on the couch when she let me feel her up and then pulled away swearing it was a mistake. Tonight she wasn't pulling away.
She stood and let the robe drop. Naked. Shaved smooth between her legs, thick thighs, soft belly, those big tits swaying. "I've been wet since dinner," she told me, voice raw. "Kept thinking about your cock. How it felt in my hand that night. I want it in me now."
I stripped fast. My dick sprang out hard and heavy. Mom dropped to her knees right there on the carpet and grabbed it with both hands. She licked the head slow, then sucked it deep, gagging when it hit her throat. Spit ran down her chin onto her tits. She looked up at me while she bobbed, eyes watering, making filthy wet sounds.
"Fuck, Mom," I groaned.
She pulled off with a pop. "Call me that while you fuck me. Say it."
She climbed onto the bed on all fours, ass up, looking back. I got behind her and rubbed my cock through her soaked pussy. She was dripping. I slammed in balls-deep on the first thrust. She cried out and pushed back, taking every inch.
"That's it, fuck your mother," she panted. "Harder. Use that big dick."
I gripped her hips and pounded. The bed slammed against the wall. Her ass rippled every time I bottomed out. Wet noises filled the room. She reached under and rubbed her clit, moaning nonstop.
"Pull my hair," she ordered.
I grabbed a fistful and yanked her head back. She came hard, pussy clenching and squirting around my cock, soaking my balls. I didn't stop. I flipped her onto her back, shoved her legs wide, and drove back in. Her tits bounced with every thrust. She clawed my back and wrapped her legs around me.
"Fill me up," she begged. "Come in your mother's cunt."
I fucked her faster, grunting, until my balls tightened and I unloaded deep inside her. Thick pulses flooded her. She kept milking me with her walls until I was empty.
We lay there panting, sweat-slick.

She reached down and scooped some of my cum from her pussy, then licked her fingers clean while looking at me.
"Round two in the shower," she said. "Then you're sleeping in here. Your sister gets home tomorrow and I want both of you."
I was already getting hard again.