While opening up about their blended family, Brian Austin Green's fiancee Sharna Burgess revealed that they've met his ex-wife Megan Fox's newborn baby.

Sharna Burgess tells PEOPLE exclusively that son Zane has "fallen in love" with his baby sister. Megan Fox and Machine Gun ...

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This baby is Fox’s first daughter (MGK shares daughter Casie, 15, with ex Emma Cannon). She also shares sons Noah, 12, Bodhi, 11, and Journey, 8, with ex Brian Austin Green.

Sharna Burgess shared how her and fiancé Brian Austin Green’s 2-year-old son Zane feels about the latest member of their extended family: Megan Fox’s baby girl.

Sharna Burgess says her son Zane bonded with Megan Fox and MGK’s baby girl, and shares how special their big blended family is ...

The baby girl was recently welcomed by Green’s ex, Megan Fox, and musician Machine Gun Kelly. “Of course he’s met her — that’s his baby sister,” Burgess says. “They’re deeply in love.

Sharna Burgess tells PEOPLE exclusively that son Zane has "fallen in love" with his baby sister. Megan Fox and Machine Gun Kelly welcomed their first child together on March 27.

Sharna Burgess shared how her and fiancé Brian Austin Green’s 2-year-old son Zane feels about the latest member of their extended family: Megan Fox’s baby girl.