Conundrum

I bought a pair of shorts at target. For $7. Ya for me.

They are a size 13. I am not a size 13 but my thighs are. So while I fit into the smaller sizes, I like the way these look around my widest part (my thighs).

But here's the problem, as I mentioned, I am not a size 13. I worked really hard not to be a size 13 (actually 14) anymore but really I don't know if I care, it's just a number. But these shorts don't sit on my hips, they slip off. I could spend a little more money and get them altered to fit my hips. Or I could return them and hope to find something in my size in the same colours (did I mention they are tan, green and blue? Cute.)

So help me with my dilemma (or like Chitu likes to call the frivolous ones, dee-lie-ma), should I return the shorts or alter them?