I have a fetish of sitting on girl's butts when we're wrestling. The feeling of sinking into it's soft plushiness with a slight bit of resistance is quite erotic to me. I've always liked dating girls with nice butts for this reason - if there's too much, it feels like a pillow, and I don't like the "pillow" feeling. If it's closer to a "silicon" feeling, I like it more, if that makes sense.
Does anyone know what this specific fetish is called?