Nicole Kidman and hubby Keith Urban share a steamy kiss in sweet Valentine's Day photo 1

Nicole Kidman shared a touching Valentine’s Day tribute post in honor of her adored husband, Keith Urban. The 53-year-old posted a picture of herself sharing a steamy kiss with her man, which she captioned: ‘My forever Valentine’.

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They are known to be one of Hollywood’s strongest couples.

In October, Keith, 53, revealed the secret to his 15-year marriage to Nicole, telling Woman’s Day he ‘tends’ to their love like a garden.

‘I do the same things I did at the beginning when we started dating,’ he said.

Speaking metaphorically, he explained: ‘It’s tending to the garden. If you don’t do the work, the garden starts to grow over, and then you complain that the garden is not very interesting and you look for another garden. I maintain this garden.’

The popular musician star added: ‘Nicole is also my best friend. I’ve never had anyone on the planet who knows me as well as she does.’

The couple married in the Sydney suburb of Manly in 2006, a year after meeting at the G’Day USA Gala in Los Angeles. They share two daughters, Sunday and Faith.