Richard Branson is famous for his publicity stunts to promote the launch of a business or a project.
He has scaled buildings, flown over the ocean with a hot air balloon, and dressed in drag, among other unusual activities.
But a famous collection of photos by photographer Stephane Gautronneau showing the billionaire kitesurfing with a naked model (Denni Parkinson) on his back in 2009 was not a part of a media campaign.
Branson recounts how the photoshoot came about, and what his wife did upon seeing it.