Lucy (The Vampires of Venice)
From Tardis Wiki, the free Doctor Who reference
Lucy was hired as the stripper for Rory Williams' stag night. However, the Eleventh Doctor swapped places with her so he would be the one in the cake. After bursting out of the cake, he said that she was outside in a bikini and asked if someone could let her in and give her a jumper as she was diabetic. (DW: The Vampires of Venice)