Lauren G is about a size 10-12, which is below the average UK size (14-16), why she looks a bit chubby is because she has a round face. I think she's got a nice figure actually. Vile personality, but a nice, normal body. Gemma's fat, not Lauren. Although Gemma doesn't do herself any favours with those stupid hair extensions and pink make up, she makes herself look like a pig.
As for Joey Essex...well, all I'll say is that he looked more comfortable with Harry than Sam.