A Succubus

That's right! I was summoning a succubus!

These demonesses are creatures who survive off of sex. They need to fuck their victims to survive, and oftentimes, they suck their victims dry, both of their cum, and of their lifeforce. But with the proper bindings and spells, an experienced summoner can bend one to their will, giving themselves the perfect companion. One that can fuck like no other and defend their master with honed skills.

But this summoner isn't experienced...