Unlike her venom, Medusa's sperm had effect on young maidens besides the usual one. So rubbing it on Konoka's skin was just making her a slippery mess, and one that was going to reek of sex for long after without a hot bath. At least slippery meant that the penetration of her ass was all too smooth, the same tail that had prepared her hole in front now doing the same in back.

"Oh? Could it be that this is your first time taking it this way?" Medusa giggled, pausing in her preparations for the front with her cocks rubbing up against the girl's pussy lips again. She took a moment to savor that scandalized expression as she pumped her tail in and out, before working it deeper into her. "And yet you seem to be taking it so well. Maybe you're just naturally perverted? No wonder you're so insatiable, if your body was so perverted to begin with!"