I CAN"T CUM

(1) I can't cum if the girl is not into it. I've chosen her because she's physically attractive but if she's got her eyes wide open and stares at the ceiling, then I can't cum.
(2) I can't cum if she talks too much or if she's a bad actress at being PSE. I esp hate it when she calls me Baby. "Will you just shut the fuck up already?"
(3) I can't cum if she's got some kind of Chinese herbal soup brewing on the stove -- god, I hate that smell. The brew is an aphrodisiac but it's giving me a bone downer.
(4) I can't cum if she doesn't clean herself after every customer and her twat reeks of petroleum fart: KY jelly & lube & latex. You know that stench? When you're fucking her and that turbulent torrent of petroleum products of days past starts to whiff past your nostrils? I can't cum.

Not cumming happens almost 5O% of the time with me. That's when I get pissed at myself for not buying the latest pair of Adidas boost sneakers, instead of seeing this dead fish.