Mostly, I have a dress requirement for the WG I'm seeing and will be specific about it. Giving it some thought, I find what a girl's wearing (at least initially) is a major turn on for me and I guess the vast majority of guys in civvy sex also. Quite often, I'll clock a woman on TV, in a film / porno even at work/ socialising wearing something that makes me think " yes, I wanna fuck a girl wearing that". The clothing item is invariably one of the usual suspects - heels, boots,nice lingerie, PVC, leather, rubber. So, if I have the cash and time, I will set about making that fantasy a reality.