Getting permission as I moan out with delight, as getting a mortal girls soul to play with is  just the best! Wiggling my butt even more as I properly attack her slit, burying my mouth in there and licking and suckling like the crazy succubus kitty that I am! Which also serves as a oral contract for the profane gift, as she said I could have her soul after all! Wiggling my butt to do the spellcasting while eating her out, giving her nonstop explosive and amazing orgasms, as the profane gift enters her body and corrupts her soul. The effect of which is her body slowly changing and transforming into a more desireable fuckpet. Her curves being more pronounced and sexy, along with her sex getting much tighter and her sensitivity increasing three fold. Her bust growing to better match her new body, all the while hearing her scream bloody murder with more and more orgasms. Also making her extra cute with changing her into a bunny girl, complete with tall bunny ears and adorable fluffy tail.<br/><br/>Finishing giving her the gift, now owning her body and soul as I stop licking her to lick my chops and give her a lewd look.<strong>"Well then fuckpet, how does it feel to be a pet of a succubus...?"</strong>Letting that slip and the realization of what she got herself into, as I also set use the gift to program her mind. Making it so she can only get sexually aroused by me and only allowed to cum when I do. Thus preventing her from masturbating and enjoying her body, and is instead forced to spend her life being a good fuckpet for my enjoyment.