Buzz·Posted on Dec 17, 201519 Photos That You Really Shouldn't Laugh At If You're An Adult*Tries to be a mature adult and not laugh about butts*by Andy GolderBuzzFeed Staff LinkFacebookPinterestTwitterMail 1. Heh. 2. *snicker* 3. Tee-hee. 4. I mean, come on. 5. *stifled laugh* 6. *giggle* 7. Keep it together. You're a mature adult. 8. You are NOT a child and this should NOT be funny. 9. It totally is, though. 10. Hehehe. 11. Nice. 12. Heh. Butts. 13. THERE'S JUST TOO MUCH. 14. Like, whoever's idea this was, thank you. 15. Oh no. 16. You're better than this. 17. Keep it in. 18. Conceal, don't feel. 19. *loses it* Need more buzz like this in your life? Sign up for the BuzzFeed Today newsletter!