A lizard-like creature

It took James a while to work out what he was looking at when the door opened, but as the creature came towards him, and into the light, it looked like a kind of lizard, or possibly a snake.

It had two legs, and an upright body between them, standing as a human would, but with a tail almost as long as it's body. It had a humanoid face, although slits for a nose and inhuman eyes, and the whole creature seemed to be oozing a kind of slime.

Initially, it seemed to have no penis of any kind, and James lifted his head as far as he could to try and understand how this creature was going to get him pregnant. However, it prowled around James once, seeming to inspect him, and then when it got to the end of the bed where his legs were held apart, it turned around. Immediately, it lifted it's tail towards James, and then it clicked, and he began to panic. The creatures tail was as thick as James' lower leg at it's thinnest point, and all of a sudden James felt greatful for the oozing slime that had seemed repulsive before.

Squirming away from the tail, especially now he could see the slit in the end of it, James could also see what was happening to the two men either side of him. To his left, the smaller of the two men is strapped into a doggy style position, with what looks like a kind of werewolf licking at his hole, and to James' right, the other man's in a similar position, but there's a creature pushing it's huge cock into the man's mouth. The creature looks to be almost like a centaur, but with the lower body of a cow.