Father is away on a trip. Mother is in hospital with an injury. Left alone, he is looked after by a quiet, timid, plain-looking aunt with huge tits. She says she is bad with men. Life with her is dull until he sees her naked after a bath in the changing room. He cannot hold it and attacks her. After a brief resist she flips and shows she was a hidden slut. She cannot refuse a request, so whenever he wants it she does it, anywhere, and he uses that body as his dedicated hole.