A few days ago a clip of a supposed Britney Spears sex tape made it's way onto Pornotube.com, a sex video sharing site. The blowjob clip looked like it could a fake. But British tabloid The Sun is reporting that indeed there is a Britney Spears Kevin Federline sex tape. The honeymoon video is said to be four hours long and KFed is supposedly trying to sell it for millions. After watching the Spears Pornotube clip I was doubtful that it was really Britney doing the blowing, but in light of more sex tape rumors it's starting to look like there may really be a Spears KFed sex video. And if the video is real, can it top the infamous One Night in Paris sex tape?