This year's series of Celebrity Big Brother has only been on our screens for three days but the contestants have already managed to shock viewers. Last night's episode saw N-Dubz star Dappy share a bath with Luisa Zissman of The Apprentice fame and American model Jasmin Waltz. Jasmine and Luisa had a conversation earlier on in the day where they discussed how engaging in a 'lesbian romance' would be likely to help them win the show. Three of the contestants had a bath together Dappy then decided to join the ladies and the three indulged in some bubbles. The rapper encouraged the two girls to kiss and he also proceeded to motorboat Jasmin's breasts after watching Luisa do the same. Celebrities quickly took to Twitter to voice their shock with The Saturdays singer Rochelle Humes asking was she watching Big Brother or a sex tape. Kimberly Walsh, formerly of Girls Aloud, replied to Rochelle saying, "I hear ya." The Saturday singer's bandmate Una Foden also tweeted back, declaring: "outrageous behaviour isn't it?! #Mammytweet (but loving it really)". On the same episode Lee Ryan who found fame with boyband Blue got up close and personal with glamour model Casey Bachelor. While snuggled up in bed, the singer told Casey, 'I didn't expect to meet anyone in here...I really like you.' Lucy Mecklenburgh, whose TOWIE co-star Sam Faiers is also participating in this year's Celebrity Big Brother, also tweeted about last night's show.