It’s interesting the whole concept of sexual attraction. In most of the world we are taught to find the female body sexually attractive. For all sorts of reasons - biological, as in continuing the species, for profit… The constant barrage all over the media and headlines “Still Sexy at Sixty”, “Look at (actress) in barely there dress”, “See (celebrity) freeing the nipple in this naughty see-through top” etc.etc. and this is just fashion, I won’t go into the constant diet of encouraging men and boys to lust after women and girls and for women and girls to desire to be sexually objectified on film, in the music industry, only fans..for the sexual gratification and profiteering primarily of men, though at least OF allows women some semblance of control.
My point is (female) sex sells and male relatives (like everyone) have had a constant diet of being encouraged to be pulled towards mainly young, attractive, barely-clothed female bodies since childhood. Of course there is an inherent disgust which has been enforced socially for hundreds of years when it comes to finding members of your family sexually attractive, quite rightly and for all sorts of reasons, but the fact remains, if a young, sexually mature woman is wearing extremely revealing clothing they are bound to be uncomfortable bc there’s not suddenly a non-sexual undertone. The clothing isn’t being worn by a child or an animal, physically and visually it’s being worn by the type of person they have been encouraged to be sexually attracted to in that particular attire.
By a family member choosing to wear them around them they have to suddenly NOT find thongs, bikinis, naked breasts or arses sexually attractive bc to them and the world it is sick in that context. Hopefully many men can separate the two things and do this successfully but it doesn’t mean it is a simple, comfortable process. It’s something no one really likes to think about bc it should be a complete given that male family members would never ever be sexually attracted to off-limits female family members - but as in a lot of sexual attractions this assumes it’s voluntary and can be switched on and off. Historically we obviously know this isn’t the case, or a lot of homosexual ppl would not have been punished, imprisoned or felt the only escape was suicide if they could simply conform by switching off their sexual feelings which didn’t comply to the societal norms of the time. Of course I’m not saying every dad, uncle, brother, son will be overcome with lust for their female family member in a nipple-grazing bikini, but it surely does not need spelling out that things like this are simply not black and white, just bc we’d all probably prefer not to acknowledge this could ever be the case in a ‘normal’ family scenario.