Immediately

When you got about half of your length into her, you buried yourself to the hilt without warning and slapped both of her ass cheeks as hard as you could several times.

"OH FUCK!" Rosa screamed.

You grabbed a fist full of her hair and pulled her back to speak directly into her ear, "You said you wanted it rougher than your sister, so here you go, bitch!" With that, you shoved her head into pillow and held her there as you started hammering in and out of her.

"OH FUCK YES, JUST LIKE THAT! KEEP TALKING DIRTY TO ME!”

“You like that? Being treated like a cheap whore?” You continued.

“YESSSS!! GOD, YES!!”

You continued hammering away, sending ripples across her ass cheeks every time your hips smacked into her. Lucia reached out and started holding her sister’s hand while simultaneously massaging her own pussy. She was clearly getting turned on by the symphony of moaning, dirty talking, and skin slapping against skin.

"You like watching me own your sister's cunt, slut?" You asked Lucia, noticing her movements. She locked eyes with you, bit her lip, and nodded in afirmation.

"You hear that, whore?" You redirected your attention back to Rosa. "Maybe I should keep you here permanently!" You smacked her ass hard again.

"AGGH, YES! I'm yours, John!" She screamed, "I'll be a good whore for you, just please keep fucking me like this!"

You doubled your pace and ****, completely dominating Rosa as Lucia rubbed herself to another orgasm. Not long after, you feel yourself finally reaching your climax. With a final hard thrust, you hurt yourself as deep as you can into Rosa and release jet after jet of cum in her pussy, setting off Rosa's own orgasm.