The slime has infused with her mammary glands and caused exponential growth. Or something idk I’m not a scientist. Because of the size of her chest, Nihilego has to insert a tendril into her mouth and pump her full. Lusamine tries to fight the urge to let Nihilego fill her up, but the warm tingling feeling spreading through her body is almost addicting, and feeling her massive breasts get heavier and heavier turns her on… each to their own I guess. Will she succumb to becoming a giant milk machine?
Apologies if the quality is a little lacking, I wanted to stay closer to the first image’s style for continuity’s sake..