London: Actor Henry Cavill has defended his relationship with a girl 13 years younger to him saying age is just a number.

Henry Cavill
Henry Cavill. Pic/Santa Banta

The 32-year-old 'Man of Steel' actor is currently dating Tara King, 19, said they are really happy together, reported Digital Spy.

"People say age is just a number. It's actually real and a true sign of someone's maturity. But in this case, she's fantastic.

"When I met my girlfriend, I was super intimidated. I wanted to impress her. I was thinking, 'Don't mess this up, man'," Cavill said.

The actor will next be seen in 'Batman v Superman: Dawn of Justice'.