her back

"I'm in charge now," you snap.
Your mom smirks and faces you confidently. "Or what? You got the balls to take on your mother, little man?"
In reply, you take her hair and twist her around. She yells in pain as you grip her shoulder with one hand, the other taking her hips to guide her onto your cock and slamming her roughly.

"Oh goddd!" she screams hoarsely, shuddering on your cock.
"That's right! You wanted a real man for a son? I got your man right here!" For all the torment she's given you, you're all too glad to give her some shit back. You fill her pussy with your hard dick, and she's too overwhelmed to resist.
"Keep struggling," you order her, imagining she'd do the same to you. You reach a hand around to squeeze her tit roughly, twisting her nipple and making her howl in surprise, pain and lust. "It make it more fun to turn you into MY bitch for once. And if you dare cum before I say, you'll regret it." Man, this is theraputic.