Rather than a straight man, it should be a man that is into woman. I only edited it to straight, as an afterthought, as obviously gay men wouldn't feel the same way. But you're right, that too, is too narrow and rigid of a qualification. But any man who is turned on by the allure of woman, should naturally find that the sensual dance of two beauties, is sexier than just one.
What woman-loving man doesn't at least once in his life, desire a thr**s*m*, or think that having multiple lovers or wives would be nice? Most realize it's an unrealistic fantasy, and in actual practice would be stressful and difficult to obtain and maintain such a relationship, immoral, and socially unacceptable, and they give up on the idea. So they suppress the desire, or even look down on it, but that doesn't mean it isn't there. I truly think for most men, if their wife/lover told him she was okay with sharing him, he would be excited about the possibility, even if he ultimately turns her down.
