Big with small ?i wanna have nice toned legs but im afraid that doin cardio will make my shrink?

You've got a really nice figure hon. I honestly don't think you need to work out at all. But if u really wanna get more toned in those areas and keep ur , i say continue cardio training but don't over do it. For toning, the best thing to do is lift weights. Do lots of reps with low weights. That'll help u tone. But don't do high weight and low reps, that'll make u too buff. Also to keep ur u can do squats and to tone ur legs ther r alot of machines that'll give u resistance workouts for ur legs.