Your foot fetish is starting to turn me on

You know, ever since mom and dad got married, I've seen that you've been looking at my feet.

And I'm your sister, so what if it's not blood related? That doesn't mean that it's okay.

I mean, you can like feed and all. That's a little weird, but I'm your step sister.

Seriously, we're related. We share last names now. That's just not right.

But you like my feet, don't you? You don't even really like a lot of other girls' feet.