Mel Martin - Love for Lydia (1977)

Mel Martin played the titular character in this 1977 series that made her a star, as a 1920's society girl who captivated a number of young men but ended up nearly destroying all of them, inadvertently or otherwise. In this scene she has Christopher Blake as her budding suitor as he gives her a birthday present in her bedroom (oo er!) before deciding he wants thanks of his own for them by getting over amorous with Lydia and putting his hand on her bum. At this point he asks her to marry him, but she has a surprise for him...