While the stars of the series - Holly Madison, Kendra Wilkinson-Baskett, and Bridget Marquardt - all were all very close living under the same roof for a time, the three of them now live totally different lives.
First up, Holly Madison.
The 37-year-old former head girlfriend of Hugh Hefner now lives in Las Vegas with her husband Pasquale Rotella, who is a tour promoter. They share two children together, 4-year-old daughter Rainbow Aurora and their 9-month old son Forest Leonardo.
Madison went on to compete on Dancing With The Stars after The Girls Next Door ended. She had her own reality show called Holly's World and also starred in a Las Vegas burlesque show Peep Shoe.
When Madison isn't on TV, she has been busy penning three memoirs about her life before and after living in the Playboy Mansion, according to E! News. Madison's latest book, which was released in 2016, is titled The Vegas Diaries: Romance, Rolling the Dice and the Road to Reinvention. The New York Times bestselling author blasted her former co-star Kendra Wilkinson in her books and also slammed Hugh Hefner.
The 32-year-old reality star is now married to Hank Baskett, and the pair has two children together, 7-year-old Hank Jr. and 2-year-old daughter Alijah.
Kendra Wilkinson-Baskett went on to have two of her own reality shows called Kendra and Kendra on Top. She also made appearances on Marriage Boot Camp Reality Stars. Other shows that Kendra has been featured on are Dancing With the Stars and switched places with Kate Gosselin and Celebrity Wife Swap.
Currently, Kendra is starring in a Las Vegas play called Sex Tips For Straight Women From A Gay Man. She recently spoke out about how thankful she was to be a part of the production.
"Just when I think it's over for me in this world, new opportunities present themselves," Kendra said. "I'm still here and it's getting bigger and I'm so thankful for these opportunities and to be able to explore life like this."
She continued by saying: "I'm birthing something new. It's a fresh new chapter in my life and I have no idea where it's taking me. I am so excited for this opportunity."
On the opening night of the play, Kendra Wilkinson opened up about whether she would have more children. Judging by her response, Hank Jr. and Alijah won't be getting another sibling.
"Absolutely not. The next baby I will be having is a shot of patron and that will be tonight celebrating opening night of Sex Tips."
After The Girls Next Door ended, the now 43-year-old model moved into a $1.725 million house in the San Fernando Valley, which is only several miles northwest of the Playboy Mansion.
Bridget got engaged to her longtime director boyfriend Nick Carpenter in 2015. The two have been trying to have a child the past couple years. She has undergone several IVF attempts and has been sharing her infertility journey on social media.0comments
At the end of May of this year, Briget took to Instagram to share a snap during her latest doctor's visit.
Marquardt also has become somewhat of a lifestyle guru as she has created a YouTube page for videos that feature cooking, makeup tutorials, and fitness tips.