Shy wife

we were at the beach at weekend and had been there about an hour, when a old guy and his wife set up near us, i could not understand why as there was plenty of space,but i knew why when i caught him watching the wife,we went for a meal and a few drinks,when we got back to the beach the old couple were just passing us,we had been back about 15 mins when i could see the wife had gone to sleep, she was lay on her side, so i thought i would have some fun,i pulled her top tit out of her siwmsuit so it looked like it had fell out,she was facing where the old couple were set up,it was about 10mins later when they came back,i was lay down as if i was a sleep but with a hat covering my face so i could watch,the old guy saw her tit right a way,he sat on the edge of his bed facing the wife but he had a video camera and he was pretending to be watching what he had taken,only thing was i could see the red recoad light was on,he filmed her for about 4mins, then he lay upright on his bed but he put a towel over his middle and you could see he was playing with himself, she was lay like that for about an hour then she rolled over on to her back, stll with her tit hanging out for about 10mins then she woke up but it was about 10 more mins before she noticed her tit out,i have never seen anyone move so quick as her that tit was back under cover so quick,then you could see her looking around to see if any one had seen her, pity she did not know the old guy had filmed her,