who’s your daddy? roler reversal. m/f.

Long back I read this story of a girl falling for a tall and a very masculine guy. But he turns out to be totally different in the bedroom. A perfect sub. She takes the lead, teases him a lot and asks him “who’s your daddy?”.

I have never read something so good. But I forgot to save the post. I tried a lot of search methods but was not able to find it. Someone pls help me…