Reggie Bush (Kim Kardashian's ex) is expecting his second child with wife Lilit Avagyan, Us Weekly can confirm Credit: Robin Marchant/Getty Images for ESPN

Daddy duty continues! Reggie Bush and his wife Lilit Avagyan are expecting their second child together, a source confirms to Us Weekly. The couple have kept mum about their growing family, but Avagyan has shown off her adorable baby bump several times on Instagram.

Most recently, the model hinted at her pregnancy while boxing. "Raising a #beast from very young," she captioned a video on Friday, April 3.

The NFL player — who was released by the Detroit Lions in February — and Avagyan wed in July 2014. The couple exchanged vows at Grand Del Mar in San Diego, Calif. (Bush, 30, famously dated Kim Kardashian on-and-off for several years until March 2010.)

Bush has plenty of practice changing diapers. The athlete and Avagyan, 27, are already parents to daughter Briseis, 22 months.

Bush opened up about becoming a father for the first time in April 2013. "I'm very excited. Very excited about the baby," Bush said on the Detroit Lions' website at the time. "It couldn't have come with a better person. Someone I really love and care about. It's great. It really worked out perfect."