My wife's Mars in Libra in 2nd House is Trine my Jupiter in Aries in 2nd House at 2 degrees and 18 minutes.This is a 2nd House aspect for us and works out excellently in terms of work, achievement and wealth.
We have an excellent sex life, but that's already supported by her extreme libido being a Leo Sun and my supposed virality being a Capricorn Sun.
But I'm pretty sure its a money aspect for us rather than sex aspect. The sex is obnoxiously excessive even for me, a man.
From Sky View Zone:
"There is nothing to hold you back you from easy expansion. You invigorate each other, your partner gives you encouragement to explore new possibilities and your assertive self expression is appreciated. Together you feel that you can face any challenge and the two of you have what it takes to be successful. You both have intuition and timing, together you’re a lucky combination of expansive activity with a future filled with bright possibilities. If your romantic partner’s Jupiter is trine your Mars you may find that it all comes together easily, friendship, fellowship, an active sexuality, and a healthy enjoyment of an active life together.
They boost each other's confidence and fill each other with enthusiasm. They make plans together, and they are realistic enough to fulfill."
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From http://astrology-numerology.com/synastryaspects.html#Mars%20trine
Mars trine Jupiter
This aspect denotes enjoyment in sharing outdoor activities, sports, and travel. It is a good combination for constructive, practical cooperation in family and domestic affairs. You are apt to encourage each other's efforts at physical, spiritual, or personal self-improvement. Jupiter tends to channel the energies of Mars into more constructive activity, while Mars has the effect of putting educational, philosophical, or religious goals into action.