The couple married October 2013 and already have an 8-year-old son named Rocket Ayer. The designer and former model were together for years before tying the knot.
During a sit-down interview with Oprah in 2014, Williams explained the meaning behind his first child, Rocket’s name.
In the same way the Indians named their children after a force or animal or element, we named him after a man-made machine that was meant to go up, meant to ascend.
No additional details about their triplets have yet been released.