Kim Kardashian and Kanye West brought their newborn daughter to a party on Thursday (04.07.13).

The couple, who are rumoured to be preparing to tie the knot, enjoyed their first outing with baby North West in Malibu, California, where they celebrated Independence Day in the U.S. at a family gathering.

A source told that the reality TV star, 32, took North, who was born five weeks early on June 15, to her stepfather Bruce Jenner's new beach house, where her entire family were celebrating the occasion.

The insider explained that Kim has had plenty of visitors but this was her first time leaving her house with the baby, adding: ''Kim has taken North on a few play dates, but she can't do it with lots of people since she's still so small.''

The 'Keeping Up with the Kardashians' star and her rapper boyfriend, 36, were not photographed at the bash but the rest of her family, including older sister Kourtney, 34, and her children, Penelope, who turns one Tuesday (08.07.13) and Mason, three, were spotted enjoying themselves on the beach.

Her younger half-sisters Kendall, 17, and Kylie, 15, were also seen swimming with Kylie's boyfriend Jaden Smith.

Another source said that Kim and Kanye, who recently turned down $2 million for the first picture of their daughter, love being parents but are being very protective, saying: ''They are both so in love with their little girl.''