Face sitting in a swing is different than on a bed. Yeah, some people love the idea of being smothered, but others just want to have a great oral experience. This sex swing position allows great access for him, and without the bed under his head, he can take a breath when needed and dive back into work. This is also easier for her. By standing upright, she is more balanced and there is less pressure on her knees than kneeling on a bed. All around, if she wants to be pleased and in a power position, this position should be top of the list.