The doting mother has been making sure to spend some quality time with the tiny tot. This time around, Lisa shared a picture of herself with Zack in a swimming pool. She captioned the picture, "Every Thursday we have swimming class.. our favourite day of the week. Last week all the kids took underwater photos with their mummies. This was ours." Meanwhile, about balancing her personal and professional life, Lisa had said to a leading agency, "It is pretty straightforward. It comes down to really good health. When I am at work, I am at work and I rationalise that in my own head because I love my job and I am a working mom.