Good Morning Britain presenter Ben Shephard was left absolutely mortified on today's show after he made an awkward comment about nipples on air.Ben made a comment about "his nipples" after his face was projected onto co-presenter Susanna Reid's dress.Susanna was also left red-faced by his remarks and Ben immediately tried back track on what he said.The whole blunder happened because Susanna was wearing a green dress, much like a 'green screen' meaning things could be projected onto her.The