I don't see why a male can't learn it. Either by being really cute. Or by showing off it's huge muscles. Plus it's mind control anyway.
True. Needs to be someone who is good with ladies though. Hm, cute/hot/good-with-the-opposite-gender 1st generation Pokémon...to Bulbapedia!!!
EDIT: Well with Scep as she is now, she'd be a good option. For someone with more long-term use, Red Baron could have a more manipulative/seductive side. Or we can wait to see what else comes up in the future.