Dirty Little Kiss

"Well, I was going to give your asshole a kiss, Nina, since that's probably one of the places on your body that has a different colour, which should be enough to prove what I just said..." Nina gasped at what she heard Kafka say, as she never knew such a dirty activity was on her agenda, even though she knew that her asshole was a different colour, like Kafka said. 

Pucker~ Tighten~ Pucker~

But at the same time, her anus couldn't help but pucker up and then open and then tighten up again, like it was excited at the thought of receiving a kiss from the outside world because of how lonely it had been inside, which made Nina wonder if she was a pervert after all.

"...But I'm keeping kissing your anus for the end of the night, so I think I will have to go for an 'indirect kiss' with your asshole to prove what I said." Kafka concluded with his fingers on his cheek and a pensive look on his face, like it was a decision he made after a lot of consideration.