What are some sexual positions for obese couples?

Obesity can cause problems for some couples. In addition to the obvious ones, a fat man will tend to have a smaller penis because some of its length will be buried underneath the layer of fat, making it even harder for him to achieve insertion if he is lying on top of the woman. Of course other factors, such as the height of each partner, also may play a role in deciding which positions are best to use. One position I might recommend is to have the man stand at the foot of the bed, and the woman spread her legs around him, resting one or both feet on chairs. This way the partners don't have to get on top of each other and the length of the man's penis is not a factor. In order for her vaginal opening to be at the right height for his penis, it might be helpful for her to place some pillows underneath her behind.