Blake Shelton and Gwen Stefani have been together for a while now, and a source close to the couple has told Entertainment Tonight that they’re likely get married one day — and they want children!

“They are very committed to one another and this is a forever thing,” the source said. “However, more important to them right now is having a baby together. Gwen would love nothing more than to give Blake his first child. Blake is dying to be a father. He loves Gwen’s kids, [which has] made him realize he could be a good father.”

Earlier this month, Blake told ET: “I never thought in a million years when I signed on to do that show that I would ever be so defensive when it comes to reading a blog or critique about one of my artists. [In the] first season or two, I couldn’t help it. I would just lose my mind when I would see someone picking on a kid, you know.”