The 'Pirates Of The Caribbean: On Stranger Tides' actor has two children, Lily Rose, 11, and nine-year-old Jack, with the French actress and says he has no intention to propose because he thinks their relationship is perfect as it is.
He told America's OK! magazine: "We've never married and that's how it is going to stay - for now. As one of our presidents once said, 'If it ain't broke, don't fix it.' We just haven't done the big public vow thing. It doesn't seem necessary for us. Others may want to go down that road - we don't."
Despite his successful acting career, Johnny says his greatest achievement is meeting Vanessa and raising a family with her.
The 47-year-old heartthrob said: "If you call meeting Vanessa an 'achievement', it was certainly that. It came at the right time. We were both ready for children, and she's given me Lily Rose, who is now 11 years old, and Jack, who's 9. I saw Vanessa across a room - and I first saw only her back! But I immediately thought: "That's the woman for me." That was nearly 12 years ago."