Well, Theoden was "Magic-Jarred" by Saruman, so the whispering probably wasn't even necessary.
#2 It's totally repulsive to me to have a male PC trying to seduce women all the time during play.
Imagine:
GM: you guys arrive in Shadizar.
Barbarian: Grondar find aleshop!!!
Thief: I'm following grondar, and seeing if I can lift a few coins in the process.
Scholar: I'm following Grondar and getting a room at the tavern, have a nice meal and drink, scope out the whores, and then work on deciphering my scrolls of Skelos and learn where I can hook up some black lotus.
Tempter: I'm not going to the ale house. I am going to the noble Bitches and start my dance of desire! I then plan to insinuate myself in theor company and become a male black-widow, to gain access to their wealth and power. Oh yeah, I got to go to the Whip store and get a new one since my last one was worn down in a debacuherous Derketo festival.
As you can see, it's much more of a solo-play and I think that some light-in-the-loafer nemedian tempter is just a joke. I guess I'm also a chauvinistic homophobe (just speculation at this juncture, though).