There are things about a play rape scene that are both daunting and exciting..
My SO, has a fantasy or two about this and I personally love satisfying those delightful dreams, I tried for years to work out how it could be done...
In the end each time I tried, she knew almost right away it was me and while fun, it didnt have the "fear factor" that drives the fantasy..
The reality of real rape, is its not about sex, its about control, so the experts say.. We discussed this at length, and in the end gave it up. there was no "safe" way to do it.