Stepmom Plays Dirty Dice with Me

Alright, fuck it. My stepmom Rachel's been riding my ass about doing more family shit lately. Wanted to bail on her and hit the boys, but she started nagging about us playing board games like we used to. Lame as hell. So I thought, you know what, fine - if I gotta be stuck here, I'm picking dirty dice. Figured she'd freak out and shut it down, I'd be off the hook. Or... she wouldn't. Either way, win for me. She said yes. And the girl was actually good at it too. Every roll we got cockier, nastier. Before I know it we're trash-talking, daring each other, until the rules just melt away and we're sweaty and breathless on the couch. She couldn't stop smiling, saying "I can't believe we're doing this" while she's straddling me, bouncing on my cock like she's been dying for it. She ends up face-down on the cushions taking every hard inch I can give, moaning louder when I grab her hips and start fucking her properly. She kept saying my dad never fucked her like this, and I could tell she meant it. Wanted me to cum so bad it was almost sweet. Didn't last much longer after she started begging. Ended up emptying my balls right into that warm, tight mature pussy of hers, listening to her moan like she'd been waiting for that exact moment.