ok I've had to think long and hard (no pun intented) about this one and I'd have to say slurping.
I think it because my last ex was so good at it and she enjoyed it when I did her so much and my ex before that would even think about it.

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it's only kinky the first time

it's not the orgasm but getting there thats fun

a shot in the bush is worth two in the hand

whip me, beat me, tie me up, break my arm, but please don't break my heart

"The trouble with the world is that the stupid people are cocksure and the intelligent are full of doubt" -Bertrand Russell