OK! COVER: 'Teen Mom': Nastiest Fights Ever! From Jenelle Evans to Maci Bookout!

Teen Mom's Nastiest Fights Ever! Farrah Abraham, Jenelle Evans, Maci Bookout & more!

OK! GALLERY: ULTIMATE TEEN MOM GALLERY: MACI BOOKOUT, LEAH MESSER AND MORE!

• Nude photos, sex toys and arrest drama.

• Turning on each other with accusations of deadbeat parenting.

• Bombshell! Why Jeremy Calvert left Leah Messer.

• Plus! Teen Mom series finale! Crazy off-camera moments revealed!

OK! GALLERY: THE CASTS OF TEEN MOM AND TEEN MOM 2 REUNITE IN NYC

MORE IN THIS ISSUE OF OK!:

• Rihanna woos Robert Pattinson with hot texts

•Jennifer Aniston dismisses idea of a prenup before wedding Justin Theroux!

• The fur flies in all the fights that didn’t fit in the Teen Mom finale! Plus war deadbeat parenting and sex tapes!

• Tom Cruise, who? Katie Holmes is single and ready to mingle!

• Kid time for Kimye? Kim Kardashian and Kanye West have  babies on the brain.

• Katy Perry and John Mayer make beautiful music together.

• From Mariah Carey to J.Lo, Madonna to Eva Mendes, the hottest accessory is a boy toy!