Maybe you should change your approach to asking her to try new things. And don't hassle her about it or get pissed off, because then it will never happen and she'll continue to be a tease.

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brodie: ladies and gentleman, this tall drink of water headed my way is a pillar of the shopping community who informed me earlier today of a nefarious plan of his to screw my girlfriend in an extremely uncomfortable place
gil: what, like the back of a volkswagen? -MALLRATS