Dappy has been filmed sucking the nipples of Luisa Zissman on Celebrity Big Brother.

This year's UK reality TV series has been called the raunchiest yet and it seems there is no slowing down of the raciness just yet.

Wednesday's (January 15) episode saw some of the housemates - including Dappy and Blue's Lee Ryan - indulge in a drunken game of truth or dare.

Dappy was dared by Jasmine Waltz to stick his head up Zissman's top and suck her nipples - which he duly did.

Ryan also thrusted an ornament of a man's head.

Media regulator Ofcom meanwhile recently confirmed that they have received 342 complaints about the Channel 5 show.

Evander Holyfield's claims that being gay isn't "normal" and scenes of an S&M dress-up session have particularly drawn complaints from the public.