The secret to the success of Kelly Preston and John Travolta’s marriage John Travolta and Kelly Preston Tue-19-Jun-12 08:55 Share this By Jay-Jay FeeneyAfter all the rumours we keep hearing about John Travolta’s secret gay lifestyle, you probably wonder how his marriage to Kelly Preston has survived. She says the secret to keeping their marriage alive after 20 years is laughter."People think with marriage, 'Oh, you just let it happen.' No, you need to create it and keep it fun and keep it alive and funny. We laugh, I think that's one of our biggest things together." You May Also Like Kelly Clarkson takes to Twitter after cheating hubby rumours Barack Obama is just as whipped as all the other married guys out there A marriage proposal goes awfully wrong Become a fan of The Edge on Facebook and on Twitter .