Instinct, I guess?

That remark was so strange, I had an unintended double take. "Tasty cock?" Gina started to pout, but quite quickly, she was scratching her head in confusion. "Why are we arguing dude?" My shoulders sag in exasperation. "I'm not really sure myself."

"OH!" Gina hopped in place as the proverbial lightbulb popped over her head. "You aren't fucking me yet dude!"

I just give up and fall back into the bed. "Could you please explain how I was hurting you at least?" An involuntary shudder raced up my spine as she started to gently pump my cock. "Think about it dude." She sat on my hips, sandwiching my cock against my groin and her soaking wet pussy. Starting to gently pump her hips up and down.

She grasped my hands and placed them on her plump and slightly sweaty breasts. " Am I part animal now?" Just a slight nod was all I could muster. "You didn't think it would be just cosmetic, did you?" That long devilish tongue of hers licked her plump and full lips before wiggling in a serpentile manner. "Gina? This isn't going to be one of those.... marathon mating sessions, is it?"