Actor Brian Austin Green has blasted reports his romance with Transformers star Megan Fox is over, insisting they are still happily engaged.

The 22-year-old beauty was alleged to have sent business associates correspondence late last month saying she was "too young" to marry.

But former Beverly Hills, 90210 star Green has dismissed the claims, telling America's TV Guide magazine they are fully committed to one another.

He says, "We're solid. We've lived together for three years. We have tattoos of each other's names."

And he is adamant the only issue he has with their relationship is that their high profile jobs often keep them apart.

The actor adds, "We have more time away from each other right now than we'd like."

Green, who has a son from his relationship with ex-fiancee Vanessa Marcil, has also hinted the couple will start a family soon, admitting he "would love" to have more children.