At her words, Carly tensed up, and her groans abruptly stopped. I grunted before shooting cum on my sister's belly and tits. Karina grinned and offered me her two fingers to sucking on. As Carly cooed below me, I bit my sister's pussy off her fingers.
"That's really fucking hot," Karina sighed as my tongue slithered between her fingers for the last tastes of pussy. "I want to do this again."
Carly was already half asleep. "Yes. Sleep now. Fuck later," she mumbled.
Karina stood and kissed me. "See you in the morning."
I grabbed my clothes and headed through the bathroom to my room. I never bothered to close...