The singer already has two daughters: eight-year-old Phoenix Chi with her ex-husband Jimmy Gulzar, and seven-month-old Angel Iris with ex-partner Eddie Murphy.
But Brown still wants to extend her family with Belafonte, whom she married in Las Vegas earlier this year. She said: "He's amazing. I'm so secure in my marriage. I'm still in love. We have me-and-him time every morning and every night.
"He's priceless. We want more kids, two maybe."
Geri Halliwell meanwhile has been setting up her daughter Bluebell Madonna with Cruz Beckham while the Spice Girls are back on tour.
Halliwell said: "'Bluebell loves hanging with the Beckham boys. Cruz and Bluebell have play dates, and Romeo - well, he is just gorgeous with her."