Here's how I might sell myself: I'm squeezably soft, but built to last. I'm only 56/100ths percent pure, but I'm mm mm good. You'll melt in my mouth and in my hands. (C'mon, you know you couldn't resist that one, either, if you were trying the slogan thing). You don't have to ask, "Does she... or doesn't she?" because I am perfectly willing to reach out and touch someone. (Sorry -- too much Mad Men, I suppose).
More short, snappy statements: I know what MST3K stands for (for "awesomeness" of course), wish I could have the babies of Mr. Show and its alumni, felt the conclusion of Breaking Bad was a bit of an anti-climax, know the proper response to a shout of "Henderson!", and can't imagine I am the only one who thought Enterprise was a pretty good show no matter what everyone else said.
EDITED TO ADD... 12-07-2013
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I'd like to clarify at the outset what I'm about. Sure, I still want to be the 21st century's answer to Mae West, but maybe I could be more specific.
Sex is an important part of my life. I like it. It's fun. I want to have it with people, even with multiple people at the same time or sequentially, but not just any ol' random people -- I want to like them *as* people. I would not approach you or answer your message if I didn't think that was a possibility.
I want to enjoy people's company. For me, this means, possibly, going on what used to be called a date -- like, let's eat something together in public before we throw down sometime, and it doesn't even have to be before the first time we throw down, if it's too hot between us to bear.
I like the possibility of romance. I like how it feels when my heart sings. I do not believe that dating and mindblowing sex are mutually exclusive. I have hope, but no expectation, that something special sparks up between us all on its li'l ownsome. That doesn't mean I want to be all up in your, you know, life. I value my privacy. I value *your* privacy, too.
Bottom line: If you just want to get laid, I respect that. But I want someone who wants *me* in particular to be the layperson. Otherwise, from your perspective, I'm just performing a service for you, and for free.