Judge Rinder's penis cake on Bake Off 'not appropriate for before the watershed'

Judge Rinder made a very rude cake on tonight's Bake Off that left some viewers gasping.

The TV judge had to make a '3D guilty pleasure cake' that was large enough to feed a party on tonight's The Great Celebrity Bake Off.

He admitted he guilty pleasures were "not appropriate for before the watershed" - but decided on a trashy novel theme.

Robert draped brightly coloured fondant over his victoria sponge to create a collection of raunchy Jackie Collins and Jilly Cooper novels.

He left viewers giggling with his very rude 'rabbit' - that looked suspiciously like something a lot more scandalous.

Judge Rinder shocked Noel Fielding with his design (Channel 4)

He was definitely doing a rude drawing (Channel 4)

Prue Leith did not hold back and claimed his trashy novels "looked like trash" in a scathing criticism.

"It really does look so unappetising, Rob. Seriously," added Prue, who did then admit she was impressed by the texture.

Paul Hollywood claimed the design was terrible but his sponge was very good, hailing him as a "natural cake baker but hopeless decorator".

IS that really a rabbit? (Channel 4)

Bake Off viewers took to Twitter after seeing Judge Rinder's rude drawing.

One viewer said: "Hahahaha!!! Judge Rinder drawing what looked suspiciously like a willy on his cake made my night!!!!"

"Honestly didn't think I could love Rob Rinder any more than I did but god I was wrong. Good clean fun (apart from the 'rabbit' on the book)," added another.

A third just admitted: "Judge Rinder just drew a cock and balls on a cake"

It was a bit of a mess (Channel 4)

Rob saw the funny side (Channel 4)

There were a lot of risqué bakes in the tent this evening - with Carol Vorderman also stripping herself off.

Her 'Bath of Many Pleasures' featured a naked version of herself in the bath in Barbie form - and she was crowned Star Baker.

Carol delighted the judges by pouring champagne into her fondant bath tub and giving everyone a straw to drink from.

Kelly Brook had a very raunchy cake idea (Channel 4)

The placement of the tap had viewers in stitches (Channel 4)

While Kelly Brook gave herself "dirty knees" in possibly the raunchiest ever cake in Bake Off history.

The model raised judges Prue Leith and Paul Hollywood's eyebrows by explaining she was going to "strip off and get in the bath" for her Showstopper.

The radio host based her cake on spending a day in the garden covered in compost, adding: "I'm definitely going to have dirty knees after being in the garden all day."

The picture of her idea left viewers in stitches after they spotted the awkward positioning of a tap next to the naked fondant version of Kelly Brook

*The Great Celebrity Bake Off airs Tuesdays on Channel 4 at 8pm