Fantasies about being overpowered are quite common for women, but you're still consenting by the very act of wanting to think about that. Actual non-consent isn't sexy. Here's something I researched and wrote about that last year.

The Most Sexually Confident Women Have the Most Rape Fantasies

"Our fantasies are a place where we have complete control over the script and the action. We decide who the actors are and what they do. The things that happen in our fantasies happen with our consent, because we are the architect of those fantasies. In some instances, they may be a way to rewrite things that have actually happened to us — to give us a different outcome or more control."