Khloe Kardashian and Tristan Thompson share their daughter, True, 4. Now they are expecting a second baby via surrogate.

It turns out that baby No. 2 had been so top secret that she hadn't even told everyone in her inner circle.

The Kardashians star Khloé 38, and Tristan Thompson, 31 have shared an on-and-off relationship for years with their last split being in December.

"Khloe Kardashian is incredibly grateful to the extraordinary surrogate for such a beautiful blessing".

Though fans likely weren't totally surprised by the news as the 38-year-old has always expressed her desire to give True a sibling. "

The youngest of the Kardashian sisters, Khloé Kardashian has appeared alongside her extended family in their tv series.