Holly Madison and Pasquale Rotella, the father of her newborn daughter, will marry during a ceremony scheduled for August 14.
The former "Girls Next Door" television star revealed the wedding date while on the documentary special "Holly Has a Baby" on E!.
Madison and Rotella have been dating since 2011 and welcomed their daughter Rainbow Aurora on March 5. However, the pair did not lock down a wedding date until now.
During the television special, Las Vegas promoter Rotella surprised Madison with options for engagement rings and also a wedding date that worked for both of their busy schedules.
Madison, 32, is the former girlfriend of Hugh Hefner. They were together for seven years before their split in 2008.
Formerly a Playboy model, Madison said she was "never dating anybody again" after the breakup, but changed her tune after meeting Rotella.
"Definitely being with the right guy has a lot to do with it," she told People magazine in June. "My relationship is awesome. I'm happier than I've ever been in my personal life."
Shortly after her daughter's arrival, Madison gushed about motherhood.
"Just holding her is so much fun," the new mom told In Touch. ."Even the delivery was easy. I was actually laughing as I was pushing!"
The model also explained the unusual name she and Rotelle chose for their firstborn child.
"Growing up, there was a girl in my school named Rainbow and I was so envious of that name," explained the model. "I thought it was so pretty and unique!"
Alternately, at the time of Rainbow's arrival, Rotella released a statement saying: "I've never been more in love than I am today as, after months of waiting, I finally was able to hold my daughter for the first time. Holly and I are looking forward to spending some quiet time with our baby and enjoying our new family. I'm truly the luckiest man in the world."
As for the couples' future, Madison revealed they want a large family.
"We want six kids," the model told Us Weekly.