Tony Raines is about to have a brand-new bloodline: The MTV cast member is having a baby!

The Real World alum and his one-time skeleton Alyssa are expecting a child together, they happily shared on Instagram. The brand-new addition joins Baby Tadison Harper, whom he and his former housemate Madison welcomed in March.

"11 years in the making #BabyOnTheWay #DueInNovember @alyssamgiacone," the Rivals III athlete captioned the announcement above, which finds the couple giving their son or daughter a sweet smooch.

Shortly after Tony's big news became public, he received some congratulatory words from a few familiar faces from his Windy City stint and the long-running game series. First up: The mother of his firstborn.

"In this life I believe that everything happens for a reason," Madi captioned the Insta image above featuring Alyssa and her mini-me. "Harper will be blessed to have a sibling in her life! Congratulations guys!!! #motherhood #family #anotherbundleofjoy"

Tony's upcoming Challenge partner Camila Nakagawa offered a humorous message.

Lastly, the Louisiana native's younger brother -- and erstwhile partner -- Shane posted a long heartfelt message with a funny image of Kendall and Kylie Jenner.

"How I feel about my bro @t_raines having another baby on the way," S began. "Me being an uncle 2X And everyone involved being happy with the situation, and being friends/one big family.

He continued: "Ps. Pease keep all negative comments to yourself. That stress isn't good for new pregnant mothers and could cause a lot of harm to the pregnancy. We are all happy that we are adding one more to the family and we all love each other. This in a weird way brought everyone together better than I would've ever expected. So please just respect this crazy beautiful journey that's taken place. It's all a blessing🏼 Thank you guys who support it, and are happy for our family #UncleUncleShane🏼 #thenewnormal #themorethemerrier."

Offer your well wishes for Tony in the comments, be sure to catch him on The Challenge: Rivals III premiering on May 4 at 10/9c and for a fun rewind, check out Alyssa's cameo on Real World: Skeletons in the clip below!