Sarah Michelle Gellar and Freddie Prinze Jr. are proving that couples who sweat together, stay together with their latest PDA-filled workout session. Related: Sarah Michelle Gellar and Freddie Prinze Jr. Work Up a Sweat Together Sarah Michelle Gellar and Freddie Prinze Jr. aren’t just husband and wife — they’re workout buddies, too. Related: Sarah Michelle Gellar and Freddie Prinze Jr.'s Sweetest Moments Proof that Hollywood marriages can work! Sarah Michelle Gellar and Freddie Prinze Jr. went from costars, to friends, to husband and wife. Related: Sarah Michelle Gellar: Spoiling Movies 'Almost' Hurt My Marriage to Freddie While Sarah Michelle Gellar and Freddie Prinze Jr. have been together for more than 20 years, it all nearly fell apart over movie spoilers.