Stomach and neck I don't really mind, but if she's sporting a mustache and a unibrow I'd be hesitant. There are ways to hide or get rid of hair. I dress up like a gilr every now and then so I have to conceal it.
It wouldn't bother me. People have hair, big whoop. As long as you don't look like a shag carpet I imagine most would deal with it.You may be self conscious standing next to a guy like me though. I'm a very non hairy guy =P