Evolutionary-cognitive boundary confusion detected. I think there are plenty of men who don't even know that women with large breasts are more fertile, and even those who do still like large breasts when they aren't trying to have children. (And anyway, I guess a large part of what counts as sexy is cultural rather than hardwired, given that men in western countries nowadays in average like much skinnier women than men in western countries in the 1950s did.)

EDIT: Of course, not everything is either evolutionary or conscious; some preferences are learned but subconscious. I've recently noticed that ceteris paribus a women will look younger to me if she's wearing a nose piercing than if she isn't, and I guess that's because where I live nose piercings are very rare among women born until the 1970s but very common among women born since the 1980s.¹ This is not conscious as I wasn't even aware of this until recently, but it's most definitely not evolutionary either.

1. I'm pretty confident it's a cohort effect rather than than an age effect, given that I see many more women in their 30s with nose piercings today than a decade ago.