Panicing more and more as the tendril keeps advancing up her butt and exploring the deepest parts of herself, along with helping you ram into her kitty pussy all the harder. Groaning out with the need to feel your seed splash into her womb, her own boobies tightly wound up by the tendrils to keep them from bouncing around too much. Gagging out sweet pleading moans for your seed, begging over and over, trying her best to hump back into you, until she finally gets her tasty reward. Letting out a sweet kitty moan as she feels your hot seed splash into her womb, getting in the first few splurts as the both of you feel the surge of magicks forming from the ritual circle! She screams bloody murder as her pussy is forced to orgasm against her consent, her pussy walls clenching down hard on you to keep you from exiting out of her and breaking the ritual. Gagging from the torment as your seed keeps pumping into her kitty womb and far beyond any volume you've managed before. Quickly filling her womb fully and starting to expand it, all the while getting white hot inside of her, making it feel like she is burning alive! Unable to stop yourself as more and more seed floods her already expanding womb, getting to feel with each splurt a rising power growing in your groin.<br/><br/>Along with watching Mistress Lavi start to shrink right in front of you! She notices this as well through her screams of agony and forced orgasm, watching her massive D cup boobies shrink down to an less impressive C cups. Also losing a foot of height as her whole body shrinks, which further tightens her orgasming pussy around your engorged shaft. Her womb keeping up with expanding to accommodate your load inside of it, eventually stopping as she gags and drools from how much that hurt while having an mind shattering orgasm. Managing to pull out of her tightened pussy to check if the ritual has ended, which does not appear to be the case. Feeling a surge of power yourself and how your cock has changed, your previous enchantment broken as the ritual has empowered your shaft. A glowing spell circle appearing around your knot, as you can feel how sensitive it is now and still rock hard, ready to go. Also it has grown by a noticeable amount when you were pulling it out, now a solid ten inches long and 3 inches thick!<br/><br/>The spell circle still in effect, however, the ritual not complete as Lavi pants and sobs and mewls to herself, the tendril lazily wiggling inside of her for the time being, not advancing any further. Not taking very long to recover from what happened to her, her womb quickly draining out the excess cum in her, dripping out of her pussy and down her legs and onto the circle. Looking around to see that the tendrils and the circle are still working, panic setting in,<strong>"Nyah, it isn't done with me yet!? Nya!"</strong>Struggling to break free with no success, gagging once more as the tendril goes back to work slowly pushing up into her butt and lower body.