Well wicked stepmother! Megan Fox treats Brian Austin Green's son Kassius to chicken dinner

PUBLISHED: 14:15 GMT, 23 March 2012 | UPDATED: 14:24 GMT, 23 March 2012

His parents aren't exactly on the best terms, so Brian Austin Green's nine-year-old son Kassius is lucky that he gets along with his stepmother.

It helps, no doubt, that his 'bonus mom' as LeAnn Rimes quaintly refers to the extra pair of hands, is face for the ages, Megan Fox.

After all, the 25-year-old must be pretty high in the cool stakes.

Mommy time: Megan Fox treated her step-son Kassius to a meal at Koo Koo Roo chicken bistro in LA yesterday

There's surely a long list of his school friends clamouring for an invite to dinner with the family.

Yesterday, one of them got lucky and was invited to Koo Roo Roo - a trendy 'chicken bistro' in LA - with Kassius, his father and Megan.

Kassius, who turns ten next week, was dressed very similarly to his 38-year-old actor father in jeans, T-shirt and boots.

Too cool for school: Kassius was joined by a friend for the dinner last night

Chow down: Megan takes a moment inside the chicken restaurant

He marked out his individuality by also donning a baseball cap and a hoodie (though Brian and Megan probably insisted on this to keep out the evening LA chill).

Megan, for her part, blended in perfectly, and is obviously keen not to attract too much attention to herself when she's with her boys.

It's hard for her, of course, given her impossibly perfect looks but her jeans, hoodie, T-shirt and boots ensured a casual look.

Wicked, in the very modern sense of the world: Megan is sure to earn Kassius even more cool points as he gets older

And while her husband Brian was stony faced, Megan seemed to be keeping the mood merry.

The original 90210 star is embroiled in a legal dispute with Kassius' mother, his ex-girlfriend Vanessa Marcil-Giovinazzo.

The 43-year-old actress, who married actor Carmine Giovinazzo last July, has responded to a lawsuit filed Brian according to RumorFix.

He contends that she owes him $220,000, but she disagrees.

Brian claims he loaned Marcil the money twelve years ago, but was never repaid.

Court documents filed earlier this month stated: 'There never was an agreement between the parties, written or otherwise.”

Marcil’s lawyers claim even if there was an agreement, it would have exceeded the statute of limitations — and at most, Marcil might owe $20,000.