The first choice sounds better.

Without really knowing much about your situation, you figure the best option is probably the one that is the most stealthy. Not to mention the teleportation alone might be enough to get you out of here alive. “I think the first choice sounds great. I would be honored.”

“Good decision. I nearly chose the other form for you just so I could kill it, as this form can do everything you will need it to do to finish your task. You will need to be mindful of who you allow to realize your true form when you are in hell or you will be killed.” He then grips you and begins chanting a spell in low guttural throaty noises and holds you in his hands. “This is how one of my kind makes a worm like you into a pleasure demon. Few know this secret.” With that he mashes you down on his cock till you feel his bulbous beast ripping into your insides. The chanting continues as he forces it in deeper and deeper causing you to nearly black out. A few moments later you feel his sticky load begin to fill your insides. As it does you feel an odd sensation, one of profound pleasure as all of the discomfort you were in simply melts away. Then as you are filled to what you are sure is capactiy, more comes and you realize your form is melting and growing into something more. You loose track of time as your body seems to flow out, growing larger, till you can feel the addition of legs and arms, greedily you gulp down the sticky goop like a animal drinking it's mothers milk till you feel your new hooves clap onto the ground, and your new slender hands are able to grip his massive buttocks, to steady yourself as you continue gulping it down. Finally after a seemingly endless transformation the pleasure finally changes into more of a warm feeling as you plop to the ground on your sexy little bottom, and his cock slips from your new sexy full lips. Taking a second to wipe the last few drops from your mouth with your slender purplish hand, you notice you now have little fangs, and your slightly long, as if you had the perfect permanent manicured black nails seem rather sharp. Rising to your feet you notice a few more things. First you see your legs have an extra joint and end in lightly reddish fur and cloven hooves. As you take a few steps the next thing you see is a long fleshy tail that ends in what looks somewhat like a barb, but as you see it the only thing you can think of is how good it might feel in someones pussy. Next you reach up and feel that you now have two horns and a full head of beautiful flaming crimson hair. Last, but certainly not least you see you are now completely female, and a vision of near perfection. You would guess you stand a few inches under 6', with impressively perky c cup breasts, and the lithe body of a dancer.

“Amazing.” You say licking every last drop of cum from your fingers.

“I take it you approve.” He balls up his hands in fists and looks you over, “Now I want you to know if you try to simply flee, I will come after you and tear you limb from limb.” As you listen to him talk with your new apparently heightened senses, you find that you can almost single out a tiny sound and amplify it till you catch yourself listening to his blood pumping and lungs heaving. While quite cool, it also gives you the sense that while you are sure he is more than capable of tearing you apart, he might have more trouble catching you than he is letting on. This small thought gives you a little comfort as you contemplate your future. He then pulls out a what appears to be a red silk square of cloth and hands it to you. “Another of your kind gave this to me. It is all she was willing to tell me about the powers and abilities of your new form. He also pulls out a small green gem tied to a thong of leather thread, “This will help you locate my friend. If you concentrate your mind into the stone it will indicate the direction to him and relative distance. My friend will tell you how to contact me once you are with him. Now go..” Then he seems to look you over like a piece of meat, “Unless you would like to test out your new body?”