A nephilim

A nephilim may be summoned without a sacrifice in a classic sense, but is instead brought into being by use of the following matrices, and through a ritual. This spirit is in fact flesh, so care must be taken. Its powers are odd and vast. The ritual is one in which two summoners engage in coitus, and whomever cums first becomes the sacrifice, permanently burning out their supernatural potential, becoming bound by the partner inducing the orgasm, but they must cum as well. Be warned that this spirit is much more loosely controlled and
Matt stopped reading, something like this was powerful, and would get rid of the danger posed by the woman without killing her. It was perfect. Plus he'd get to fuck her, so a bonus. Matt spent the better part of an hour making the matrix, marking it directly onto the tile with permanent marker (he'd get it out later with ethanol). When ready, the elemental had already brought the woman into the room. She looked a shade paler than before, but her eyes still shined with fury.
With some careful instructions, he made the elemental retrain the woman in doggy position and he manually gagged her with a handkerchief. Then he stripped her, running his hands over her taut body. The woman looked scared, but her body began showing signs of arousal. Began by positioning himself between her legs, and licking her pussy, slowly but steadily. Surely enough this garnered a reaction from the woman, who started to rhythmically moan and move her lips. He kept this up, now moving his hand into her snatch and gently stroking her insides. The woman's eyes grew wide at sudden change of sensation. Matt kept this up, listening her breath as her breathing became more and more breathy and passionate. Matt knew it was time to begin the second.