The question here is, is the "chunk" on your legs from fat or muscle? If it's muscle then you can get away with wearing mostly anything that accents/shows off your legs because most guys agree that fit/muscular legs on a girl are attractive, as long as its not bodybuilder proportions. If it's fat, however, you have to be a lot more conservative assuming you actually care about what other people think, which I'm assuming you do since you're asking this question. Honestly though, I think you should do what you want regardless of other people's opinions.
The high waisted shorts might make you look like you have a wedgie. I'm the same body type and wear pants that cover at least the upper part of my tights. I think depending on what you pair them with, they could look adorable or a bit out of place.