Justin Bieber and girlfriend Selena Gomez took Justin's younger half siblings, Jazmyn and Jaxson, for a fun day out at Paradise Cove beach in Malibu yesterday.

It must have been too cold to swim, but that didn't stop the fun. Selena monitored the kids by the water and Justin giddily threw his brother Jaxson in the air.

Justin made headlines earlier this week by flying a fan out to meet him.  He made the day for a 6 year old who has a rare form of brain cancer.

See more pics from the beach day on the following pages...