Looking for Story RE: FFM telationship with wife and sister

[Twanquavius]

There was a story (I think it was a series) I read months ago that I am looking for again. The husband had a thing for the wife’s sister. The wife knew about it, and even roleplay Ed as her wearing the same clothes at some point. I believe the sister moves in with them, and they even hear sister masturbating. It turns into a full on threesome after they go out dancing.

Help appreciated.