Britney Spears has been in the headlines more than usual lately with the news of her conservatorship, the public has not heard much about her two sons. 16-year-old Sean Preston and 15-year-old Jayden are all grown up now and were recently spotted in a rare appearance on social media.A post shared by Britney Spears (@britneyspears)Kevin Federline is the singer’s ex who she shares her two sons with.