Where was Tara Sharma spotted with the Kapoor sisters?

Tara Sharma bumped into the Kapoor sisters (Karisma and Kareena) and it was definitely a selfie moment. Tara was at her son's (Zen and Kai) swimming class when she suddenly saw Lolo and Bebo. She refers to the picture as ‘2 yummy mummies and one mummy to be'. The trio talked about babies and motherhood. What else?