'Inappropriate for broadcast': Heidi Montag and Spencer Pratt get raunchy on Celebrity Big Brother

A new year means a new series of Britain’s Celebrity Big Brother, the trash-tastic spin off from the global reality TV sensation.

This year the trash has reached new heights after an X rated romp between The Hills stars Heidi Montag and Spencer Pratt was reportedly recorded over the weekend.

They say sex tapes sell, right?

Despite the excitement of the scene, network execs decided it was simply too saucy to air.

Dubbed "Speidi", the married couple entered the Big Brother house last week amongst criticism from the other housemates that their relationship was a sham.

Also jumping aboard the CBB13 train this time around is Aussie soap star Ryan Moloney, former Steps singer Claire Richards and X Factor UK finalist Rylan Clark.

View slideshow: Celebrity Sex Secrets