DungeonMasterOne said: Either double chocolate or black forest gateaux, from Tesco or Asda, ideally the larger ones (they come in two sizes). Take out of packaging, place on a tough plate or tray, fully defrost, cut into slices and move them apart a little, and fill the gaps with custard. Squelch!

messy944 said: My wife's favourite is a iceland chocolate gateaux

Mustbetights said: I like a cheesecake to sit on. Aldi do a strawberry one for 65p!

screen_name said: The frozen gateaux work best- ones like DungeonMaster recommends have lots of cream and mousse compared to the amount of sponge. All the different flavours are set in the same section of freezer together.
Worth noting that chocolate -especially when smeared over the buttocks- can sometimes unfortunately unintentionally look like the result of a certain bodily function. Suggest looking through a few cake sits on here to check if you're grossed out by the illusion of cake shits.

The typical cakes you see in the bakery section are mostly sponge, which is much drier and less sticky- they'll work, but would flatten and crumble rather than give the squish and squelch we all tend to love with cake sitting.

Remove packaging before defrosting- they're very squishy and fragile once thawed and its a nightmare to get the plastic case off without turning everything into a sticky mess.