The 19-year-old singer has no qualms about letting rip in front of her band mates and feels no shame about making them suffer from her unpleasant habits in confined spaces.
Jesy Nelson revealed: ''On car journeys I have to scream at Perrie to open a window.
''She literally can't smell anything, so she burps and farts and just doesn't care because she can't smell it. I hate it. It disgusts me.''
Jesy, 21, went on to list her second pet hate as seeing people spitting in the street, but Perrie doesn't think there's anything wrong with it, as it's a natural reaction.
She explained to Top of the Pops magazine: ''If you've got a bit of phlegm in your throat and you need to get rid of it, sometimes you've gotta do what you've gotta do. Sorry!''
However the 'Wings' band - which also includes Leigh-Anne Pinnock and Jade Thirlwall - are all agreed they hate boys who cheat on their girlfriends, and would like to inflict physical punishments on them.
Jesy said: ''I'd make them have a tattoo on their head saying that they've cheated, so no one would go near them.''
Leigh-Anne added: ''I'd kidnap them and wax every hair on their body until there screaming in pain!''