the twins beat her down some more

Petty shifted herself to sit flat on Karen's face, her bare ass shoved into her as she humped at her, grinding Mama's nose into her asshole. "Bet it smells better than your dried up old cunt, huh MOM?" she jeered.

Timmy had moved south by then, firmly gripping Karen's thighs and lifting them up. He teased his cockhead over her entrance, enjoying her fearful but aroused quaking as a result.

"That's right, mommy. Little Timmy's grown up now." He thrust deep into her in one stroke, a bit roughly so that she screamed into Tomgirl's ass. Timmy laughed and continued to fuck her hard. "What's the matter? Even bigger than dad, huh? Well who's your daddy NOW, bitch?!"

Karen wouldn't stop screaming in overwhelmed pain, shame, and lust as she was humiliated by her children.