On a recent trip to his home in Tishomingo, Oklahoma, the country singer, 39, introduced his girlfriend to the most important woman in his life, his mom Dorothy, multiple sources confirm to PEOPLE.
Then, Thursday, Shelton spent time in L.A. with Stefani's dad, Dennis.
"Blake helped Gwen's dad around the house," another source tells PEOPLE. "They seemed very friendly and like they were getting along great."
PEOPLE confirmed The Voice coaches were dating in early November, after bonding over their respective breakups on the set of the singing competition. (In July, Shelton and wife Miranda Lambert announced they had divorced, while Stefani, 46, and husband Gavin Rossdale announced their split just two weeks later.)
"They've been able to support and relate to each other and have gotten through a very difficult and now triumphant time in their lives," a source recently told PEOPLE.
Reporting by MELODY CHIU