Britney Spears and Kevin Federline's Steamy Hotel Rendezvous Revealed

In his forthcoming memoir, "You Thought You Knew," Kevin Federline, now 47 years old, provides a behind-the-scenes look at his relationship with ex-wife Britney Spears, 43. Federline recounts how the two first met in 2004 when he was a backup dancer for the band LFO, which was opening for Spears on her tour. Though they had never properly met before, a mutual friend, Teresa Espinosa, introduced them at a Hollywood nightclub.

Federline, who was 26 at the time, admits he was initially "just thinking about smashing" Spears. However, their encounter quickly blossomed into a whirlwind romance. That same night, Spears invited Federline to join her for a late-night swim at the Beverly Hills Hotel, where she had a private bungalow. The two then retreated to the bungalow, where Spears "turned around, slipped off her underwear and started kissing" Federline.

What began as a "purely physical" one-night stand soon stretched into a three-day tryst, with the couple "holed up in that bungalow." Spears then invited Federline to join her on the European leg of her Onyx Hotel Tour, and the two married later that year. They went on to have two sons, Sean Preston and Jayden James, in 2005 and 2006, respectively, before divorcing in 2007.