I do not have a story, but I do have a perfect soundtrack song for twisty way-kink incest. PERFECT. How can I prove this to you? Uh, here:

She's your cocaine
She's got you shaving your legs
you can suck anything
but you know you wanna be messy
put on your makeup boy
or your favourite stranger
and we all like to watch
so shimmy once and do it again
Bring your sister
Bring your sister if you can't handle it

Tori Amos - She's Your Cocaine (http://www.azlyrics.com/lyrics/toriamos/shesyourcocaine.html)