Jessica Alba reveals she almost gave her half chewed gum to Ashton Kutcher when they filmed a kissing scene for the upcoming film Valentine's Day.

Ashton and Jessica are friends off screen and she said kissing him on screen was awkward. It went from awkward to embarrassing all in one leap...

According to the Daily Star, the actress explained: "Whenever I'm nervous I have gum on the roof of my mouth - so I had it (during the scene) and my mouth got dry because I was nervous because I knew I was going to kiss Ashton. It got powdery and it got on my lip during my close-up."

The actor who is known for the TV show Punked, didn't let Jessica get away with it and, “called [her] out in front of the whole crew.” The actress admitted the incident “was really embarrassing."

We are pretty sure that worse things could have happened and if that's her biggest worry in life, gawd bless her.

Valentine's Day hits cinemas this week and we can't wait to see it! A film that features all our favourite actors and actresses in one place? Amaze!

Will you be heading to the cinema to see the film?