.ws websites are going to lose the majority of the traffic to the .com version. You might be able to get some traffic using SEO stuff and very hard work, but never be able to convert your visitors to type-in users. Not sure if it's worth the effort.
They are good keywords... especially seduction.ws. But in my honest opinion, the .ws extension just isn't worth registering. I've had some killer four and five letter words in the extension and couldn't give them away. I don't think these would fetch even low $xx from domainers.
Seduction is nice the other is not so good unless developed.
I can see seduction getting at least $60 bid on sedo with end user.
Hard to get good sales with .ws, unless it's a super keyword don't do it!