She walked into his room without knocking, just like always. He was on the bed, cock already half-hard from the heat and the way his shorts rode up. "You need it again, don't you?" she said, voice low and direct. She didn't wait for an answer. Her hand wrapped around his shaft and started stroking, firm and steady, milking him with long pulls from base to tip.

"Fuck, Mom," he groaned, hips lifting. She squeezed tighter, thumb rubbing over the head to spread the precum. "That's it, give it to me," she told him, eyes locked on his cock as it thickened in her grip. She pumped faster, skin sliding wet and hot, the sound of it filling the room. His balls tightened under her other hand as she rolled them, tugging just enough to make him curse.
She leaned closer, tits brushing his thigh. "You like when Mommy milks this big cock, don't you? Look how much it's leaking for me." Her strokes turned rougher, twisting on the upstroke, then sliding all the way down until her knuckles pressed against his body. He thrust up into her fist, chasing the rhythm she set. Pre-cum dripped over her fingers, making everything slicker, louder.
"Don't hold back," she ordered, voice dirty and flat. "Shoot it when you're ready. I want every drop." She worked him harder, one hand jerking the shaft while the other pressed and massaged right behind his balls. His breathing turned ragged. She felt the pulse start deep, then the first thick spurt hit her wrist. She kept milking through it, squeezing out rope after rope, watching it coat her hand and his stomach.
When he finished twitching, she didn't stop right away. She stroked slow and firm, pulling out the last few beads, rubbing them into his skin. "Good boy," she said. "Now clean up and come downstairs. Dinner's almost ready." She licked her fingers once, tasting him, then walked out, leaving the door open.