The Made in Chelsea star has often flaunted her svelte physique, but photos taken yesterday appear to reveal her significant weight loss.
The reality star stripped off to a skimpy khaki bikini, which accentuated her perky cleavage, to scrub off the jungle dirt in the iconic jungle shower.
Toff, who was already a tiny size six when she entered, revealed her visibly smaller frame in the chic two-piece as she made the most of her final days on the show.
The shocking pictures come after it was claimed that this year's campmates had collectively shed around six stone.
A source told the Daily Mirror on Sunday: "The celebrities lost the weight because they are eating healthy organic vegetables and meat, the body readily absorbs this so they make sure the meat is heavy in protein and the fruit and veg heavy in minerals, vitamins and glucose.
This year's campmates have struggled to win enough stars for a packed meal - meaning the cast have been mostly surviving on rice and beans.
The dramatically reduced diet has meant stars have often lost weight during their time in the jungle.
Meanwhile, Toff remains the favourite to be crowned queen of the jungle, while Iain Lee’s odds have also been slashed.
“It would appear that the tide of public sympathy is very much in Iain’s favour and his odds have tumbled considerably over the course of the last couple of days,” said William Hill spokesman Joe Crilly.
“Toff is the clear favourite but with a few days left, there is every chance that Iain’s odds could fall further and he could be her main challenger.”
I'm A Celebrity… Get Me Out If Here! continues tonight on ITV at 9pm.