Dirty talk

There are times in relationship when we’re called upon to go outside out comfort zone. For some people that’s dressing up, getting into an awkward position or being asked to lick wasabi from a naked body part. For me, it’s dirty talk that leaves me squirming. Yep. The mere thought of filthy sweet nothings being whispered into my ear just makes me want to giggle, laugh, guffaw. Just plain lose it. And that’s not the reaction most guys are looking for when they reveal their hottest desires. Are they? I’m sure lots of you out there find it a turn on to hear all those naughty things in the throes of passion, but I struggle to deliver a good sentence, without sounding like I’m on a bad sex line. "Um, yeah, I like your big, hard ... er, do it to me, tiger... grrr..."
I’m not alone here. Miranda, my favourite gal from Sex in the City, also struggled to deliver the 'durty tawk'. But somehow she got over her shyness and just went for it. She was so good at it, in the end, that the guy she was seeing dumped her for one particularly filthy one-liner.
I’d love to have lessons in the art of lurve linguistics, but in the meantime I’ll continue to be more of a sympathetic listener than a full blown orator.
So, tell me: Is dirty talk a turn-on or a turn-off? How do you do it and not laugh out loud?