Hillary Duff's Future Sister in Law

NIP SLIP!!!
JK, I really don't care about nip slips. I'm so desensitized. I'm all for vagina slips.
Oh and this girl (I barely even want to giver her a name because she is so inconsequential), Sophie Monk, is dating Benji Madden. Hence the title.
But for real, that metal clasp rubbing on her nipple seems like it'd hurt. How does she not notice?