Femdom Handjob in story - brother bent and holds chair while sis milks cock pulled between the legs.

[thowawaybup]

Looking for a story I read about a year ago. From what I can remember , involves Taboo - the brother gets a hand job and was asked to grab a chair. He mistakenly sits on the chair and was told to go around and grab the chair, where he got a femdom milking handjob from the back, between the thighs. The sister also admitted to doing this with her friend's brother together. The story progresses to a blowjob later as much as I can remember. Anybody know the Title or link on literotica? Thank you!