Fuck her.

"I'm going to fuck you," you replay matter-of-factly as you grab the underside of her knees

"MMmmOOOooo!!!" she screams in her gag and tries to close her thighs together but you keep them apart. You hook the underside of her knees with your forearms and lean forward, pressing your body on top of hers -- your chest squishing against her huge tits -- so she can no longer struggle. The only thing left for her to do is clench her pussy tight, forcing you to forcibly nudge the tip of your cock into her resisting snatch.

You know you are not thinking correctly but your reptilian brain has overridden your logic and judgment -- you are still upset how Erin had abused Samantha and the primal lust of having your way with the bound buxom blonde.

"Mmmmf!" Erin stares at you with tears running down her cheeks when you finally sink your cock balls deep into her, stretching her cunt with your thick shaft.

"How does it feel to have a real cock in you?" you groan as you slowly thrust in and out of the vice-like grip of her cunt.

"Mmmm," the blonde moans. You feel her body relax as you pump in and out of her, probably because she sees no point in fighting and has accepted her fate of being fucked by you.

"You like it don't you?" you ask. "You love being fucked by a real cock?"

Erin initially shakes her head in defiance but knows that her body is betraying how she really feels and then nods.

You moan into the side of her neck as you accelerate your thrusts, your balls loudly slapping against her upturn ass cheeks.

You cannot believe your luck! Not only did you get the opportunity to have sex with one of the most beautiful women you met for several hours but you then fucked her bareback this morning. Now you're fucking her ex-lover. You don't want to cum just yet at this rare opportunity of a lifetime -- you would love to just keep pumping away at the vice-like grip of her pussy but you wouldn't mind to take her in another position.