Only if they're female. And Gen, don't even try to tell us you haven't tried to mentally undress at one of the flight attendants you've had.
I haven't; most of them were cougars. Nothing wrong with cougars, I'd totally date one, but I don't really actively think about it.
3 months ago, I've had a male flight attendant hitting on me when I was put into one of the business class seats. I am very sure he was gay and so I had to tell him that I am meeting my girlfriend at the airport...luckily I did not see him again when I touched down in Tokyo. That was an unnerving experience.

I bet that was a unique experience.