<human>: Can you give me a shortened version of the text?

I work at a restaurant, only seasonally while I'm not at college.  I only have like twenty days left at work.  One of the waitresses is absolutely gorgeous, and we've been friends for several years, and we've worked together for two summers.  We flirt a lot.  A lot.  But we also joke around a lot, so I don't know how much of her flirting is joking.  I mean, we get pretty vulgar sometimes.  I'm a little overweight, and she's stressed heavily that she's a chubby-chaser.  Our hugs are pretty sensual.   

However, I don't want to ruin the friendship.  So my question: is there a way for me to casually invite a romantic relationship in perhaps a comical way?  I've got the line, "Wanna just go have sex?  I'm kidding, of course.  Unless you're serious, in which case, I'm dead serious."  But that seems that she might still think I'm kidding.
<bot>: Wanna get it on with a girl, but we joke around too much to be sure that there's a connection.