"Moist," is not pleasing to me. However, I can see why it would appeal to you. "Moist," doesn't do it for me the way that, "stiff, hard and throbbing," does.

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"The smartest, most passionate, most beautiful women I've met have been Satanists. I don't mean "beautiful on the inside where it really counts;" I mean gorgeous, vibrant, curvy women." Blanche Barton
"There's no such thing as too many books." Poetaster