I am trying to find name of movie, this is the only scene I remember is about this woman taking bath and this young man staying with them wants to get inside but resists.later the woman comes out and the young fellow says he has ro leave. Then they start to make love. Later while making love the son of woman along with family enters and the son who is quite grown up suspects his mother of sleeping with the man. He enters the room and fins this man lying but doesnot see the ppanties lying beside the man. The man quickly hides it. Later they go on picnic and the son puts his legs in between his mothers thigh form under the table. The woman not realising thinks it's the young man thigh but soon pushes it away in anger when the man gets up to get something and she realises. Then they got on yacht but the son is determined to reveal the truth.