I'm sure you have seen those ads where a woman is massaged up and down her legs, arms and face in a milf facialized as happy ending position. The ad copy always says how it feels like the woman is totally relaxed, and then takes her clothes off in the milf facialized as happy end position. That position is designed to give maximum stimulation to her breasts, pubic area and clitoris. It's probably an effective position because you can give a more thorough massage to her other than just the breasts. You can feel her relax and take her time getting completely comforted and enjoying her massage as a happy ending to a sensual foreplay..