Geri Halliwell and Russell Brand were all over each other on their first date.

The couple shared a romantic picnic on London's Hampstead Heath just days after they both performed at the Olympics Closing Ceremony earlier this month and onlookers revealed the pair couldn't keep their hands off each other.

A source told the Daily Mirror newspaper: 'Geri and Russell were being very open about everything, there was no attempt to hide the fact that they were on a date.

'There was lots of giggling, eye contact and touching as they sat together near a couple of trees.

'They looked like they had known each other for years - and the relationship was obviously more than just friendly.'

Meanwhile, a friend of Russell, 37, claimed the comedian is serious about the 40-year-old Spice Girl - who has a six-year-old daughter Bluebell from a previous relationship - and doesn't care who knows about it.

The pal explained: 'He really doesn't mind who knows, because he's serious about her.

'He has fancied Geri for years, so this is almost like fulfilling a lifelong dream for him.'

The couple were spotted on another date at the weekend, when they took Bluebell to London's Hampton Court Palace.