Brian Austin Green, 48, already has four sons and is again looking to add to his family, this time with his girlfriend Sharna Burgess, 37. The dancer, a participant in the dance show "Dancing with the Stars," will soon give birth to the star of the series "Beverly Hills Area, 90210" fifth son. The insider also says that Brian knows Sharna, who has no other children, is "going to be an incredible mother to their son." Brian was very lucky to get a preview and look at Sharna's mothering skills, seeing how well she acclimatized with his kids," the source said. "She's so natural with kids; he knows she has what it takes to be the best mom." The Beverly Hills 90210 star has been living with Sharna since October 2020, after divorcing Megan Fox, 36, who is the mother of his sons Noah, 9, Bodhi, 8, and Jorny, 5. Brian also has an older child, Cassius, 20, with former co-star Vanessa Marcil. However, according to insiders, Brian is not at all...