A member of Britney Spears’ entourage is threatening to publicly release a copy of a steamy home video featuring the singer and her husband Kevin Federline. The tape was allegedly recorded while Britney was still expecting baby son Sean Preston. During her pregnancy, Britney claimed that her sex life is the best it had ever been. She confessed at the time: “I think it’s the best. Sex is crazy good.” Britney also stunned US viewers on her reality TV show, ‘Chaotic’, after she was shown begging Kevin for sex.