Pippa and beau’s passionate 4.30 am kiss!

Updated: Oct 03, 2011, 16:51 PM IST

London: Pippa Middleton was pictured sharing a very tender kiss with beau Alex Loudon while waiting for their 4 am pick-up after attending a charity boxing evening.

The 28-year-old sister-in-law of Prince William was spotted looking exhausted yet sensational in a floor-length red dress while waiting for a taxi.

“She had been yawning and was obviously shattered. But as he held her close she looked up at him and they shared a very tender kiss. It was sweet to watch,” the Sun quoted a source as saying.

“They looked very much in love. Pippa’s dress was amazing and it showed off her wonderful figure,” the source added.