Is that...

A DEMON?! Doug's blood ran cold as he stared at the red skin being revealed as the shadows pulled back. Smooth red flesh, leading up to an enormous bust capped with obsidian colored nipples, as the shadows pulled further and further away eventually Doug would be staring at a towering demoness. 1 minute had passed since Doug had frozen in front of the mirror, now he could see her, the beautiful demon futa towering over him, her tits so massive that with her nearly 2 feet behind him that all it took was her to bend slightly forward to rest her breasts on top of his head. "Well... Hello there~"

Doug heard her speak, her lips covered with her black lipstick, her arms very slowly reaching around his body, holding onto the counter and keeping him very gently trapped against the counter. "You poor thing... you don't even know what you've done do you~? Mmm I'll have to thank you regardless though, tell me sweetheart, what would you like~? I can give you the body you've ALWAYS wanted, I can give you fame, riches, I can grant your EVERY desire..." That's when he felt it, something MASSIVE pressing against his ass, running down to press between his thighs a bit, the moment she moved her hips Doug would feel it traveling MUCH lower, eventually feeling it THROB as it rubbed against the lower part of his shin. "All you have to do is agree to... HELP me with something~ I can GUARANTEE you'll enjoy it darling, I'll make sure of it~" In that moment Doug can't feel it, but he can SEE her body suddenly SWELL, the demoness's arms and body gaining muscle, as she let out a little moan, her body surged a bit taller still, her hips widening even as Doug HEARD her Futahood SMACK against the door beneath the counter.

If the rest of her body was growing further, how big was she getting down there? Doug was having trouble thinking, focusing, unable to make himself move or speak until finally...

(Here you are! A nice poll to help me figure out which way to go with this. https://strawpoll.com/7rnzmerPEyO Please vote! I have a few idea's and this should help me. Also would love comments about further idea's if anyone would like to share.)