Mostly, I buy the exact same size and brand of undewear from Victoria's Secret, whenever need be (or there's a sale, whichever comes first).
Today I was wearing said underwear, and it keep riding up my right buttcheek.
Now, as I said, I buy the EXACT SAME size and style of underwear from Vicki's - EVERY TIME. In fact, just recently, I purchased about three new pairs of said underwear - and this is the ONLY pair of the three (or ever) to ride up.
Which leads me to ponder the question - did Vicki's mislabel the size, OR DID MY RIGHT BUTTCHEEK JUST BECOME SPONTANEOUSLY LARGER?