Mars shows what a woman is attracted to in a man. Being with a man who is strong in her Mars element, or who makes close sextiles with her Mars, makes the relationship much easier, and increases sexual desire and compatibility. For a man, his Mars is part of his masculine nature, so it is best when his partner also relates well with this element.
Mars Sextile Uranus
You can generate a lot of sexual energies with an abundance of inspiration from your innovative romantic partner. You two are likely to experiment with almost anything unconventional. Your initial enthusiasm for pursuing your desires pushes you to take risks and be even more daring as a couple than you are individually. When the Mars person is sextile the Uranus person they are ready to take opportunities which promise excitement and physical adventures including an interest in variety, novelty, and experimentation in your sex lives.