Dancing With the Stars pros Peta Murgatroyd and Maksim Chmerkovskiy celebrated the upcoming arrival of their first child with a sweet baby shower on Sunday. The couple, who got engaged last December, were all smiles as they honored their son at the McCarren Hotel & Pool in Brooklyn, NY. While the Ukranian-native dressed up in a black suit and polka-dot shirt, his fiancée looked absolutely radiant in a flowing white dress. The pair gave fans a sneak peek at their party by posting a number of snaps on social media, including one of Maks and his former DWTS partner, Amber Rose, who is rumored to be dating his brother, Val. Maks recently opened up to POPSUGAR about fatherhood, saying that he "cannot wait to be incredible parents with [Peta]," adding that he knows his partner will be a fantastic mother. So sweet!