This is the hilarious moment a boy surprised his mum during a photo by shouting "everybody say titties". <br /><br />Nabega Nankema, 30, was skiing with her son Ashtyn Milton, six, at Lost Valley Ski in Auburn, Maine, when she captured the moment on camera. <br /><br />Nabega said: "I was out night skiing with my son. <br /><br />"I took my phone out to capture a video and I was saying 'night skiing with my boy' when he interrupted me and said 'everybody say Titties'. <br /><br />"I was in complete shock but honestly just wanted to burst out laughing.<br /><br />"I asked him where he heard that from and he said 'when we take pictures at daddy’s house, daddy always says 'everybody say titties'."
