Rachel and Dennis panic at picnic

Rachel and Dennis were rewarded with a picnic hamper in the garden tonight for winning the persistence task earlier in the day.

But as soon as the pair began tucking into their treat, Dennis panicked that they might be inadvertently spoiling the housemates’ food supplies.

"Whatever you eat, you cannot get on your shopping budget," he informed Rachel, telling her: "You’re a persister, sister."

With mouths watering at a selection of goodies from the group’s shopping list - including grapes, Rachel’s favourite food - the pair began walking round the garden, tidying it and playing games of 'I-Spy' to distract themselves from their hunger.

Dennis even pondered whether they should eat everything in the hamper, saying: "It could be the complete reverse, maybe we have to finish it. But no – that’s too good to be true!"

When their picnic was over, the pair were called to the Diary Room, where they later revealed that a sarcastic Big Brother asked them if they had enjoyed their food.

Dennis said the female voice had referred to their actions as "picnic paranoia", asking Rachel if she would ever listen to Dennis again.

He laughed to Rex that she had sent them on their way by saying: "Big Brother wants to know if you have any more questions because Big Brother has to go and eat some grapes."