Hollywood star Megan Fox says having three sons is nothing short of watching a UFC fight night throughout the day.

Megan has three boys -- Noah (eight), Bodhi (seven) and Journey (four) with her former husband Brian Austin Green.

"I don't know what it's like to have a girl. For me, it's like UFC Fight Night all day, every day. We need to live in a padded cell for everyone to be safe," Fox said on the "The Kelly Clarkson Show", reports femalefirst.co.uk.

She added: "They love each other. They're best friends, but the fighting is non-stop because they have so much energy and they're so rambunctious that it's just a melee. My kids will pull out fists full of hair and be like, 'I got your hair, Noah!' "

Fox had reportedly introduced her children to her boyfriend Machine Gun Kelly and things are going well, according to a source.