Heidi Klum says bringing up four kids is a juggling act

The supermodel and husband Seal are bringing up daughters Leni, 7, and Lou, 22 months, and sons Henry, 5, and Johan, 4.

And she said life with a big brood can sometimes get a little bit hectic.

'It's a huge responsibility to have four kids,' she told Us Weekly.

'They all have different likes and dislikes and activities that they want to do. You have to learn how to juggle all of that, and at the same time, give them each the love that they need. When you have one [child], you can focus on one. With four, you have to make sure [your attention] is all spread out just right. You have to understand how different they all are! And at the end of the day, there is not much time left for you!'

But the Project Runway host said that life is made easier by the fact that her children are a 'united bunch'.

'They always stick together and take care of each other. They love each other! They love helping Lou. They like to feed her [and] they include her in all their activities.'

The children are already being taught how to share and care with help from the family's two German shepherds, Freddy and Max.

The dogs 'are starting to teach them about responsibility and caring for someone else,' Klum said. 'They are also learning about rules, schedules with feeding and walking and sharing. Having the two dogs is big time sharing for the kids!'