Deep inside her

As Samantha bounces furiously up and down on your cock, riding through the waves of raw pleasure from her orgasm, Alicia joins in, stroking her sister's clit between your bodies, driving her mad. A storm of lighting fast squeezes from her vaginal muscles drives you all the way to the edge.

Then thinking quickly, you ask:

"Are you on birth-control?"

"OHMYGODITSTOOMUCHFEELSGOODDONTSTOPIMCUMMINGSOHARD" is all you get as an answer, but you can't hold off anymore and you explode deep inside this sex addicted hotty, making her squirm and scream even more.

Just then, Alicia answers your question for her sister, telling you she is not.

Samantha finally comes down from her orgasm and collapses onto you, still twitching.