Sleep with the creature. Why not?

"I'll leave the two of you young people to get better acquainted," Pretorius said, leering one more time as he shut the door. William ran a hand through his hair. What was he getting himself into? The woman did not look at him. It was obvious he was going to have to take the wheel on this. He stood in front of her and cupped her face, turning it toward his. Her eyes were as blank and glassy as a doll's. He kissed her; her lips were full and soft, but she did not return the gesture. This was going nowhere fast. Outside, the rain was coming down. The flash of the lightning seemed to draw her attention, and for a second her face was illuminated blue-white in the electric glare. William looked her up and down. She was still dressed in this strange getup, rolls of linen swaddling her body, as if she'd come out of surgery. We're never going to get anywhere with all this in the way, he thought, and grabbed a handful of the bandages, ripping them away.

The woman jumped up. She grabbed his arm and started to squeeze, and William gasped. She was strong as an ox! Half her clothes fell away in strips, leaving her naked to the waist. Her body was perfect, white, smooth. Her dark eyes looked dangerous. Rather than back off, William grabbed her and pulled again, stripping fabric away. She squeezed his right arm so hard he worried the bones might pop, and now grabbed his left too, but William didn't relent. They struggled together like that for a moment before William relented, falling first to his knees and then to his back. The now-nude woman crouched over him, pinning him. He didn't struggle, but his prick was now swollen and throbbing to beat the band. She evidently noticed (or felt, more likely, given their proximity) the activity and eyed him down there uncertainly before freeing one hand long enough to strip him from the waist. Well, he supposed he couldn't complain; after all, he had started it.

She was, surprisingly, wet and throbbing in her own right when she lowered herself onto him. The head of his prick slid snugly inside and a tangle of emotions and expressions passed over her as she began to ride up and down, testing the new feeling. Her powerful legs lifted her up and down and maneuvered her from side to side with barely any effort. Her large, firm breasts bounced with the effort and her strong arms held William beneath her. He didn't dare resist; one wrong move and he was confident she'd break him in half. Thunder tolled again and again outside, and the blue flash of lightning became more and more frequent at the window. The air seemed to take on an electric quality, and the woman pumped on top of him faster and harder. Rain lashed the sides of the tower as the upper floors teetered in the wind. William imagined it was the **** of the mute woman's riding that shook the structure. Silly, of course, but he still couldn't quit the idea...

Muscles strained. Skin heated. Sweat rolled. The world became a pounding, throbbing urge. The storm was out of control, and inside things were rapidly spinning in that same direction. The woman hadn't blinked once the entire time, and her unflinching gaze pinned William down. His cock ached. He tried to push up into her harder, but she didn't leave any room for him to move. He had to wait as the muscles inside her body squeezed him harder and harder, the pressure rising as she seemingly squeezed everything out of him. William bit his lip and drew blood. It was almost too much. Could he take it? Could he? Could--?

Thunder broke the sky open and William released and the monster threw her head back in a wordless cry, and then it was all over. Dazed, aching, frightened, William collected himself. The woman, a perfect marble-skinned nude, stood at the window, looking at the storm. She did not acknowledge him as he left. William couldn't shake the feeling that he'd made a terrible mistake. He wished Pretorius would stop chuckling as he handed William his payment: A small wooden chest with a three or four phials of white liquid, just like the Countess' notes described. He sniffed one to be sure: The smell was heady and potent, like ambergris.

He tucked the box under his arm and headed back out into the storm, with the thunder and the lightning to keep him company. Maybe he should tell the villagers what was going on up here? Perhaps it would be better if they burned the place. Then again, maybe he should just let the poor creature be. He suspected he had already done enough damage as it was...