Miranda Kerr insists she is too busy for a boyfriend.

The Australian supermodel, who split from British actor Orlando Bloom in October after three years of marriage, recently sparked rumours she is dating businessman James Packer, but says she's happily single.

The 31-year-old beauty told Australia's Sydney Morning Herald newspaper: ''We've been friends for years. [Rumours] happen all the time with me, it happens to Orlando [too]. We understand it. As long as we both know [the truth], then it doesn't really matter what people think. People can speculate as much as they like.

''You're with a friend and then they assume that just because you're with a friend it's suddenly: that's your new partner. People just assume, just because you're going to have a coffee with someone or have dinner, then suddenly you're dating!''

The brunette beauty, who has son Flynn, three, with Orlando, added: ''I'm really happy and content to just be single at the moment and to be focusing on Flynn and my work. It keeps me very occupied. Of course going on a date here and there is fine if it fits into the schedule.''

Asked how she juggles motherhood and her career, she said: ''Planning and routines.

''With Flynn, if I go away for a day or two, he'll stay in his routine and have that structure and then if I go somewhere for over 10 days - like for instance when I was here in Australia - I bring him and then we have our routine here in Australia.''

But Miranda is open to falling in love again and said: ''I honestly feel like a genuine heart is important. That's what I find the most attractive.''