When trying to learn a new instrument the rule of thumb is, practice makes perfect, but when Nicki's concentration is on stopping herself peeing, you know this is not going to be easy, Nicki becomes increasingly desperate as her piano tutor Zoe demands that she perfects the right notes, Nicki asks to use the toilet but Zoe wants her to become perfect at the keys, Nicki bends over the piano, her perfect bum is in the air, will she let go and send a torrent into a jeans?