You simply start in the missionary position. While the woman lies on her back, the man penetrates her. So nothing spectacular until then. The trick is as follows: as soon as the man has penetrated her, the woman presses her legs together and the man begins to carefully push himself further and further upwards until both pelvises are touching. His pubic bone comes to rest on her clitoral area and the woman is stimulated much more intensely. Tada! The perfect sex position has been achieved! If he now starts to move slowly and grind his hips against hers, there's no stopping him and the woman has no choice but to join in. With such intense penetration through vaginal penetration including clitoral stimulation, powerful orgasms are inevitable. Have fun trying it out and enjoy!