The stars became firm friends when the former Spice Girl moved to California with her soccer ace husband David in 2007.
But Longoria Parker confesses the trio would rather shun the L.A. nightlife to stay in and play games - because they are actually "very boring people".
She tells Britain's OK! magazine, "We all three are not big drinkers. Kate, Vicky and I are very, very boring people. We love to stay in each other's homes.
"We either go to Victoria's house or my house and we kind of just stay in. We have dinner, we chat, we talk. Kate comes to our games nights, we play different games and it's a lot of fun."