Lisa, Dean compete in sugar tower task

Warning: This article contains language and/or sexual references that younger readers are advised to avoid.

Lisa and former Big Brother contestant Dean O'Loughlin competed in a replica of the record-breaking sugar tower task from series two this afternoon.

The pair joined up when Big Brother called them into the living room following Freddie's assault course challenge against Big Brother 1's Craig Phillips.

Dean joked: "If we both talk in heavy Brummie accents, no-one will understand a word we're saying."

Big Brother instructed them both to compete against each other by building the tallest sugar cube tower.

If Lisa won it would count towards getting the housemates a luxury shopping budget, but she said: "At the end of the day, if we can't have food, we can't have food."

Following the end of the hour-long time limit, Dean's tower was significantly higher.

He said, "Fuck it, man", and knocked the tower down just before the klaxon sounded.

Former contestants are re-entering the house as part of the show's tenth anniversary celebrations throughout this week.