Sexy Celebrity Selfies: See Lindsay Lohan, Russell Brand, Amanda Bynes + More [PHOTOS]

Ah, the selfie. The most narcissistic thing on social media -- and the not-so-secret guilty pleasure of many. Celebrities, especially.

For the uninitiated (or Amish) among you, a selfie involves taking a photograph for oneself, not necessarily but most likely to get public adulation. The shots generally feature pouty duck lips, a state of partial undress or even complete nudity. (Bonus points if it's a mirror-pic with some lens flare.)

Check out our collection of naughty celebrity selfies below.

Lindsay Lohan

Russell Brand

Adrianne Curry

Coco

Heidi Klum

Courtney Stodden

Amanda Bynes

Chris Pratt

Kim Kardashian

Kate Upton

Demi Moore

Sofia Vergara