There is a successful gigalo route. I had a friend who paid for a full ride for both undergrad and masters by being part of a male dance review group that did ladies night at local bars. He made plenty in tips, but he had a significant side business in escorting with business guys wives. He was disgustingly good looking though. I learned never to hit the bars with him as he was a complete cock block on any woman in viewing distance.
If you're willing to fuck dudes you would prob make a killing...other than that I doubt you would have much luck. And the things that would call you for sex...jesus christ good luck getting it up even with viagra