I was invited to their hotel once several years ago. . . . .

An FA who posts on the NW forum says she met her husband when he was on one of her flights, and that her mother met her father the same way!

Check out posts 7 and 12 in this thread:
http://www.flyertalk.com/forum/showthread.php?t=395605

Yep! ^

Yes. Didn't ask her out on the plane, but ran into the FA at a bar later that night. I was entertaining clients and she was with a group of 4 or 5 beautiful FAs. My clients didn't mind hanging out with them for the evening :D

I did ask couple of SQ girls and went out with them. It was difficult to continue due to work timeing.

I've asked and been asked out by fa's before. I usually break the ice by asking about the desitnation city, fun activities to do, and invite them to come out to do some. Usually when on a layover, they have NOTHING to do for 20-30 hours and would like some company.

It usually works only on longhaul flights.