No lube for you

You clench your teeth, and try to stare down your mother. There's no way you're doing this, not ever! She forcefully rubs her cock across your lips, and slaps your cheek with it a few times, before scowling.

"Still uncooperative, huh? I tried to be nice about this, but if that's how you want it..." She lifts you, and carries you over to the couch, her cock swaying back and forth with every step. She aligns the head of her cock with your asshole, then drops herself onto the couch, letting gravity impale you on her shaft. You let out a choked cry, and tears begin to roll down your cheeks. She lifts you, slowly at first, her fat shaft sliding through your intestines, until just the head is inside you, before yanking you down again, filling you once more. You can feel her cock throbbing in your ass, and she drags you up again, then pulls you down, as she begins to settle into a rhythm. Up slowly, down quickly, she picks up her pace as she pistons in and out of you, her fat cock gliding against your prostate again and again. Your own member is at half-mast, bouncing up and down, as your mother uses you like a cock sleeve.

She lowers her hands to just your hips as she shifts herself forward, letting you fall to the floor but keeping your ass in the air, her cock still lodged within. She pulls you back and forth, fat meat twitching inside you, grunting every time she bottoms out. "Oh, God, you're so tight. It's been such a long time since I've been able to fuck such a tight ass. Oh, honey, I..I'm gonna cum!" She pulls you you tightly against her crotch, you can feel her balls rubbing against your own. Her body tenses, and her cock starts shuddering in your ass, pumping thick gobs of cum into your bowels. She holds you there, her cock acting like a buttplug, keeping her cum sealed inside you.