My little wife got the same crackpot idea about a nerd at work. Met him for a Sunday romp at the Holiday Inn, and the guy turned out huge, was not satisfied with oral, became excited and forcefull.
She missed work Monday and spent the day on the couch holding her crotch and groaning. It was a week before we could resume our normal sex life.
Be sure of what you're getting into or is getting into you.