Khloe Kardashian and Tristan Thompson welcome second child

Khloe Kardashian is now a mom of two.

The reality TV star and her ex-boyfriend, Canadian-American basketball player Tristan Thompson, have welcomed their second child via surrogate, a source close to Kardashian told CNN.

No name for the baby boy has been shared yet, reports CNN.

The former couple are also parents to a 4-year-old daughter, True.

The pair have had a tumultuous, on-and-off again relationship marked by several cheating scandals. In January, Thompson confirmed that he had welcomed a son with fitness model Maralee Nichols.

But Kardashian, 38, has been vocal about her commitment to co-parenting with Thompson and her desire to grow her family. She documented her efforts to conceive a second child through IVF and fertility assistance on "Keeping Up with the Kardashians."