I don't know why this is even a discussion, its really strange. This is the generation of meaningless sexual relationships, almost everyone from my high school class that stayed home instead of going to college has had some meaningless sex with one another at some point, same to a lesser extent for the smaller social circles of college. Not that its right its just the currently socially accepted thing.
Those who says its not professional...who cares. Residents marry residents, med students marry med students, you think these people are waiting for marriage before hooking up, you think people have never just hooked up to satisfy physical desires in a work climate that for years provided no time for personal enjoyment.
If she is on board take her and bang her, bring your A game because people will talk about it (this is fact girls talk about everything more so when they are medically inclined). Honestly the fact that you have to come here to ask advice means that you think it is the wrong thing/you're nervous/not all that into the one night stand conquest thing. All these things are ok, but if your nerves outweigh your desire to get your stick wet (I'm not this vile I just love euphemisms) then don't do it maybe its not the best decision for you right now and that's ok too.
Or to sum it up