This is such a big mental issue in sports like Track & Field at the college level it isn't even funny. Female athletes are often so scared of getting "too big" and scared they won't be hot anymore but in reality the kind of guys they would be interested in probably aren't intimidated by an athletic woman with muscles. It isn't like they are going to want a chubby little beta male who plays World of Warcraft all day.

That being said everyone has their preferences of what they are into and what their ideal body is in their mind. That has clearly been warped by photoshopped Instagram models or people on gear.
One thing I typically see fit girls do is get fake boobs and in my head like like NOOOOOOO. A girl doesn't have to have big boobs to be hot. It is their choice but honestly a fit girl who doesn't have huge boobs can be so sexy.