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 Trine Mercury
There is nothing to keep you from acting upon your thoughts. Your romantic partner stimulates your intellect and arouses your sexual creativity through intellectual discussions debate, while inspiring and encouraging you to put your ideas into action. When the Mars person is trine the Mercury person, you give him/her confidence to think about and communicate their sexuality, spark originality, and keep up a challenging running mental workout which brings out the best in both you.