The Osbournes are getting a new member!

Jack Osbourne — son of Ozzy and Sharon, and brother to Kelly — is expecting a second child with wife Lisa Stelly Osbourne.

Lisa shared the happy news in her blog: “Jack and I are super excited to share with you all that we are expecting our second baby! I am in my second trimester, feeling great & trying not to eat everything in sight. We feel so blessed that our family is growing & Pearl will have a little brother or sister to play with. It’s  crazy to think that we will soon be a family of four!”

Their daughter, Pearl, was born in April 2012, and Lisa and Jack got married in October of that same year. Earlier this year, 27-year-old Jack told People, "Getting married and having a child definitely has focused me. Now I'm not so much worried about going out on a Tuesday night and staying up until three in the morning and meeting hot chicks. No."

Last year, a source told Us Weekly about similar changes for Lisa. "She made this huge transition from model and party girl, to wife and unbelievably devoted mom! … She started a mommy blog, because she has literally read every book and is becoming a baby expert. She would like to maybe write a book for first-time moms -- it's something she has started thinking about."

And now that baby expert can apply her new knowledge to Baby #2. Congrats to the growing family!

Sources: Raddest Mom, Us Weekly