There's a brand-new addition to the "Real World" Season 30 family -- and yes, it will be a tiny skeleton Tadison!

Tony and Madison -- who memorably fell for each other during their MTV tenure, survived several ex-girlfriend invasions and continued their romance after leaving the Windy City -- are having a baby! The beaming mama-to-be announced the exciting news with a sonogram of her precious peanut, along with a heartfelt message:

"One of the happiest moments of my life," Bubbles wrote. "Being able to see our sweet little angel growing inside of me and I couldn't feel more blessed than to have you by my side @t_raines I love you baby, I already know your going to be the most amazing father."

No word yet on the bundle of joy's gender or due date -- or a glimpse of Maddy's belly -- but we already know this kiddo will have some crazy and fun-loving aunts and uncles. Right, Nicole, Violetta, Jason, Bruno and Sylvia?

Can you believe these two will soon be parents? Offer your congratulatory messages below, and watch a sweet Tony and Madison moment from the "Skeletons" house!