New sick idea all started from a joke on a podcast

Hm... the idea started out after listening to a podcast... a joke revolving around a young girl wearing a track suit, and the track suit has the words "gorgeous" on the butt of the track pants.  Hence the picture:

At this point, I'm just going to rant about the story as a result of the picture, so if you're squeemish, don't continue...

The idea continued to flow... a pair of twins, boy & girl.  Sister constantly teasing brother, brother finds revenge by posing for naughty pictures dressed as sister, teacher finds pictures, ends up falling for the sister, boy continues to tease the teacher, teacher ends up going off the deepend and commits lover suicide with sister, kills their parents, traumatize brother, brother wakes up thinking he's his sister, teacher's wife takes him in out of obligation since her husband killed his family, wife reveals she's a futa, screws the brother after admitting she likes him, they live happily ever after... kinda... 

Ah, the mind of a sicko... don't mind me.  Reality I believe is not so cruel, hence these are just stories and not reality.