How do i get thinner cheeks?

this probably sounds insane, but my cousin has this roller thing that's pretty much Y shaped and it's got rollers on the ends of the Y and you roll it over your face for this exact purpose. i think she bought it in japan, i wish i knew what it was called but i can't read japanese. otherwise, you could learn how to do your makeup so your cheeks look thinner, or just love yourself the way you are because... you were born this way ;)