You go up to the man that was aware, a slender man, neither muscular nor skinny, he looked to be about 25, give or take. What was most surprising was he wasn't scared or angry, in fact he looked happy "You aren't scared?" you asked him "Not really, I don't see the point in resisting, and to be honest, but I actually want to be corrupted." He answered.
"That's the spirit." Said the sincubus announcer. Shi was pulling on the chain of the aware adult woman, who was trying to get as far away as possible "Hey there stud, mind if we corrupt these two together?" "I'd love too." you answered. The sincubus forced the woman down to the, shit cover, floor and started fucking her, as the woman screamed, for her to stop.
Your male human comes close to you, and you grab his chains and say "I'm not holding back." "I'm getting what I deceive, in life I sold my body. It wasn't because I needed the money, it was because I loved sex, especially with men." He puts his arms around your neck and lowers himself on to your eternally hard cock "Take me, corrupt me, I want to have sex for all eternity, my heaven is this lustful hell."
After hearing that you couldn't have stopped fucking him even if you wanted to, which your incapable of. The man starts to pee himself, and you began to shit, as the two of you roll around in crap. Harder and harder you fucked this damned human the both of you moaning in pleasure, you could feel the crap in his ass, and the piss he was releasing, and then you start to piss in him, earning another moan of pleasure.
"Want to switch now?" asked the Sincubus "No, don't I want you to corrupt me." said the human "Good, I could fuck a woman, but I only lust for men." you say with a laugh "But if you want to fuck me..." you say to the sincubus. Without saying anything the sincubus rams her cock into you, without waiting for you to stop shitting. The woman doesn't get a break though, as the sincubus sat on her face and began to crap.
"What a great ass, and this woman's a pretty good toilet." said the sincubus but you don't hear her as you are to lost in pleasure. You don't know how long you've been fucking, must have been hours seeing as your human has cummed more times then you can count. Your close now, you've been close for a while, the sincubus has already corrupted her human. She was using the know welling sincubus as a toilet and seeing that made you want to make your human into an incubus toilet.
You came, and the human begins to change, his skin tuns red, his cock grows, his body becomes stays the same, and his hair becomes black. The human moans as his tail grows, then he slides under your ass and says "Your toilet is ready, make sure to use the mouth for piss." You smile and begin to crap as he sucks on your pissing cock. And the two of you fall in lustful love.