Citation? It's too basic to even enter that realm. It's like asking me for a citation proving the primary biological motivator for eating is sustenance/hunger because some dipshits had managed to convince people it was all about the taste and advertising and depression eating etc... those are all real things at play in eating but of course the biological need is still the main reason.
Do you believe rape is some new thing? It is very much a part of human sexuality in its natural, pre-civilized state. None of us alive today don't have rapists in our genealogical ancestry, concentrated most at the dawn of our species.
It is simply deemed incompatible with civilized society, and rightly so.
Some humans have the relevant urges more strongly than others, but to pretend it is some alien contaminant in our sexuality is wildly naive and demonstrates a failure to take note of enduringly popular themes in pornography, film, and women's romance novels in particular.
I do not condone, nor promote, nor am I someone with strong urges toward those fantasies. What I am is someone who refuses to sugar coat reality.