I think a lot of those Olympic female athletes are pretty good looking, not just in swimming. Probably a combination of being physically fit and not wearing makeup when competing and practicing their sports.
She's a swimmer though. Pretty soon she will be a big, muscular blob with small breasts.
I like tennis players... those women have nicely toned muscular legs that can just grip my head tight between their thighs and snap my neck clean off when they are done with me <3