Denise Welch climbed into the hot tub with Frankie Cocozza and Kirk Norcross, exposing her breasts and revealing a gift for the X Factor contestant, who turned 19 on Tuesday.
Cocozza, Norcross and Gareth Thomas also revealed some flesh for their housemates, performing a party piece involving only balloons covering their genitalia.
Celebrity Big Brother continues tonight with a live eviction.
Michael Madsen and Georgia Salpa face becoming the third housemate evicted from the Channel 5 reality show.
Scroll through the gallery of housemates getting naked below: