Newly-engaged John Stamos, 54, hits the red carpet with new fiancee Caitlin McHugh, 31, for the first time as she shows off her huge rock at fundraiser

John Stamos, 54, and new fiancee Caitlin McHugh, 31, shared their first red carpet kiss as a newly-engaged couple on Tuesday.

Bride-to-be Caitlin beamed with happiness at the mothers2mothers and The Elizabeth TaylorAIDS Foundation’s event in Beverly Hills, flashing her huge new rock as she rested an affectionate hand on her man’s chest.

Having revealed that ‘she said yes!’ over the weekend, the happy couple then embraced in a passionate kiss.