Brian Austin Green, 47, has responded to Megan Fox‘s divorce filing by asking for joint custody of their three sons: Noah, 8, Bodhi, 6, and Journey, 4. The Beverly Hills, 90210 star is asking for both physical and legal custody in the court documents that were filed on Nov. 25, and obtained by HollywoodLife on Dec. 7. We have reached out to Brian’s and Megan’s reps for comment.