Credit: Fame Pictures

Oh, baby! 

Pregnant reality star Shayne Lamas was a vision in red at her father's wedding on Saturday. The 25-year-old former Bachelor winner posed with hubby Nik Richie in Cabo San Lucas, Mexico before her famous father said his "I do's." 

Lorenzo Lamas, 53, wed his fifth wife, Shawna Craig, 24, at the ceremony. Lorenzo's new wife is a year younger than his expecting daughter. 

Back in February, Shayne told Us Weekly her dad was "over the moon in love" with Craig. "As long as my family is happy, healthy and getting along they will always have my blessing! Congrats Dad!"