The country music hussy, 35, recently announced she’d wed 27-year-old Brendan McLoughlin after a whirlwind three-month romance.
But sources said Brendan two-timed his previous fiancé with his baby mama — and hooked up with Miranda just days before his son was born in November!
Carol Bruno, the mother of Brendan’s jilted fiancé Jackie Bruno, blasted: “He’s just a lying, cheating, no-good piece of garbage. He literally led a secret double life. He was at my house and ate dinner almost every night while his pregnant baby mama was at his place.”
A source close to Blake Shelton’s ex added: “Miranda is an impulsive person who doesn’t think of the consequences before she falls madly in love.
“Now she’s run off with a deceitful two-timer who appears to have no conscience! It’ll never last.”