Aamir and Reena together have two children - son Junaid and daughter Ira, with whom even Kiran shares an amicable relationship.
"Reena is just wonderful and she has just done such a great job with these kids. They are super kids. I lucked out. I got Aamir and I got a great package deal with this super family," Kiran said during a tete-a-tete with Karan Johar on his chat show 'Koffee With Karan'.
Aamir ended his 15-year-old marriage with Reena in 2002 and during the shooting of Ashutosh Gowariker's 'Lagaan', he and Kiran, who was working in the film as an assistant director, ended up being together. They tied the knot in 2005.
Kiran and Aamir welcomed Azad Rao Khan via surrogacy in 2011.
Kiran says when she first met Junaid and Ira, 'they were quite young'.
"Ira was a little girl and we became friends instantly. They are very intelligent kids, very perceptive and they quite instinctively knew that I was a friend. That I was going to come into their life, more in that capacity... I think I am very lucky.
"Even if we had not had Azad, I would have felt really complete because of Junaid and Ira," she said.
The 'Koffee With Karan' episode featuring Kiran and Aamir will air on Sunday 9 p.m. on Star World.