But I totally agree with your stance that men are held to a different standard than women. Women get to flaunt their breasts, but the most a man can do is wear pants that are just tight enough that one would believe he is unaware of the bulge he's showing. It's unfair that a woman can play upon the sexual desires of men and not vice versa.
Women get to flaunt their breasts but only if they are covered up, specifically, the nipple area. How is this any different from men who are legally allowed to wear speedos in public? Also, there is a difference between a breast and a man's genitals. Showing a penis to a minor is like a woman showing her vagina to a minor. Not her breasts, though even that is proscribed in anything but a covered, suggestive way in our society-- at least where children are concerned.
Mind you, I have no problem with children and nudity. I have a problem with children being exploited by adults for sexual gratification. The OP specifically likes to manufacture situations where young girls see his genitals. Depending on the state, the legality of this may differ, but I personally think that ANY grown man scheming to show ANY woman his genitals unbeknownst to her so he can get off is selfish and inappropriate. Sexual acts shoud be consensual. The fact that he likes teenagers who may or may not be at the age of consent makes it worse, as does the fact that his original experience was with family members.
Yeah, this is a nice fantasy to jerk off to, and even a good porno plot, but it's not the smartest thing to be doing or talking about publicly.