Kimora Lee Simmons was recently in the spotlight after her ex-husband, Russell Simmons, posted about their co-parenting issues. A few weeks after the incident, Lee Simmons shared her life as a single mother of five children in an exclusive interview with PEOPLE. Aside from her role as a mother, Kimora is also a model, a television personality, a fashion designer, and a businesswoman.In the exclusive interview with PEOPLE, Kimora Lee Simmons shared:"I don't sleep much... know that's bad. I'm always taking all the kids' orders, taking them to date nights, arranging cars. My oldest child is 25, and you can look at Miss Ming Lee's Instagram and then just know that I'm the mom on the other end in the middle of the night making sure everything's okay. Part of my exhaustion is managing the kids."Because her children are of varying ages (25 to 10 years old) She added that she has to "wear a lot of different hats." She continued to explain:"It's not like one hat goes away or anything like that... It's like all different versions at different times, and you have to juggle. It's a balancing act."Why is Kimora Lee Simmons a single mother?Kimora Lee Simmons also explained why she is a single mother to five of her children in the exclusive interview. Simmons shares her first two daughters, Ming Lee Simmons (25) and Aoki Lee Simmons (23), with American record executive Russell Simmons.Kimora shares her third child, Kenzo Lee Hounsou, with Beninese-American actor, Djimon Gaston Hounsou. He is 16 years old. Her fourth child, Gary Lee, was adopted when he was 10 years old. Now, Gary is the same age as his older brother Kenzo.Simmons' third son and fifth child, Wolfe Lee Leissner, is 10 years old. She shares him with German-born investment banker Tim Leissner. Kimora also has a bonus son, Jayden, who has lived with the family since he was in fourth grade.Kimora Lee Simmons explained why she is a single mother, saying:"Usually I would say that I co-parent okay, but the kids are with me full-time... I'm pretty much the primary parent. It's difficult, but I don't know sometimes what other people are thinking. Guys are weird."She also clarified that she does not have a relationship with her children's fathers.Kimora shared what her children are doing in their lives, starting with her two daughters. She said:"They obviously grew up with their mom in front of the camera, but it's a little different when you're branching out on your own... They've done monumental things in their careers, and I'm so proud of them. Ming has her skincare brand Boulangerie Beauty, and it's really yummy-smelling. Some of the smells remind me of Baby Phat."Jayden had just graduated from high school, and she continued to say:"Kenzo is 6'9 and plays varsity basketball, Gary plays football... I'm close to the teams and catering dinners for all the student groups. I'm an involved parent."Kimora Lee Simmons shared an honest look at her life as a single mother of five. She balances many responsibilities while managing her children's different needs at different ages. She remains deeply involved in her children's lives and is proud of her children's growth and success. She also clarified that she does not have any relationship with her father's children.Also read: Russell Simmons vs Kimora Lee: Net worth compared following their latest co-parenting dispute