Watching Shai toy with her own body was entrancing for Siferus as his cock pounded away at the tight tunnel of the beautiful scientist, her moans music to his ears. With her face covered in his seed, she let out a long, distinct moan, like the one she made earlier when she came. This was made abundantly clear when she threw her head back, grabbing at her breasts.

Taking her orgasm as a sign, he came, filling Shai's tight tunnel with even more of his cum, the excess falling onto the sand beneath her. The poor girl looked exhausted, and Siferus wasn't in top form either. Fatigue had begun to settle in on both of them. This was made clear to Shai by his slowing down of his cock boring into her. His breath was irregular.

Siferus moaned in pleasure. Shai was truly a jewel when it came to sex. She was beginning to wear him down. Then something strange came into his vision. Black...almost as if made of pure shadow began to slither and move beneath her. It intrigued him. So much in fact, that he had completely missed the last comment that she had made to him. The one about releasing her. Not that he had any intentions of doing that just yet anyway.

What on earth....is that? Quite interesting. He said, pinning Shai to the sand with no effort at all. His gaze seemed fixed on the substance that moved beneath another potential candidate for him to steal and hide for a while before letting her go.

You're a sexual jewel, Shai. I'm thinking very heavily about taking you for myself.