Toni Street's hilarious reaction to baby news

Coast Breakfast's Toni Street says it's "the best news ever" that co-host Sam Wallace is expecting twins with his partner.

Wallace shared a hilarious clip of Street reacting to the news on Instagram as he showed her the baby scan on his phone.

The genders are staying secret for now, but Street will be first to know, and she's in charge of the gender reveal. Until then, the news is staying in a sealed envelope.

"I've got a boy so it would be amazing to have two girls," Wallace says.

"That's the perfect family but all I really want is us to have healthy twins and I really don't care if I've got three boys.

"We'd be on our way to my starting five basketball team, and we'd have some pretty amazing motocross days but yeah, the perfect balance would be a couple of girls as well."

The twins are due in February next year.