John Cena and fiancée Nikki Bella couldn?t keep their hands off each other at the MTV Movie & TV Awards on Sunday night, and they couldn?t have been more adorable. The pair of professional wrestlers -- who got engaged in April when Cena proposed on live TV after their tag team match during Wrestlemania 33 -- dressed up for the occasion, and made sure to liven up the red carpet with some lip locking and heartfelt PDA.