Hmmm, sex classes of all varieties, something that has been rolling around in my mind for a while. I wonder how, where, who? Could be an interesting idea.
As for the flirting, I think the direct eye contact is the single most important ingredient to the flirt. Of course, the eye contact itself can take on different forms, you can just catch the eye and shyly glance away. Then you could use the smile and hold the eyes just a bit longer, before laughing and looking away. Then there's the stare with meaning (careful not to come off looking like a stalker) that usually gets some kind of response. I usually like to add the odd double entendre, perhaps with a blush added. And the walk away usually gets them following if you do it right.
Love
swingingstories