"When Leo and Scorpio join together in a love match, the result is usually a dynamic and intense union. They are well tuned in to one another's needs; Scorpio demands respect and to be wanted while Leo needs to be adored and complimented constantly. They are both extremely loyal, and often possessive of one another. Both members of this love match are able to give the other what they need and while enjoying one another's strengths.
Leo relishes comfort and luxury, often doing things on a grand scale. Leo tends to be flamboyant, and Scorpio will appreciate that and will be happy to be the audience Leo requires as long as there is equality in the relationship. Leo shines brighter and more insistently, evolving into the living, breathing manifestation of magnificence and luxury. Scorpio shies away from the limelight but likes to control the mechanics. Because both Signs are so determined, these partners really need to work to understand and accept one another.
Leo is ruled by the Sun while Scorpio is ruled by the Planets Mars and Pluto. The Sun is about ego and self, and it radiates warmth and light. Leo indeed emits this kind of zeal and enthusiasm. Mars is about war, brashness and battle, and Pluto is the influence on Scorpio's inner dialogue. Ruled by the House of Sex, Pluto influences the idea of regeneration and rebirthing that is a current theme in Scorpio's life. Together, this abundance of male energy causes Leo and Scorpio to lighten their conflicts and assist one another. The Sun represents life, and Mars and Pluto represent ambition and the unconscious; as long as they take the time to really understand one another on a deep level, their romance is a positive one with high expectations.
Leo is a Fire Sign and Scorpio is a Water Sign. Leo demands the freedom to mingle, while Scorpio has a chameleon personality. Both Signs want to lead, but in different ways, and this common desire could end up causing ripples in an otherwise steady, smooth relationship. Like the Elements that influence them, these two have the ability to cancel one another out. At times, their relationship may not be so harmonious. However, both partners will realize that petty disputes are only a distraction, and as long as they can keep their egos at bay and give the relationship top priority, their conflicts can usually be resolved.
Scorpio and Leo are both Fixed Signs. Both can be rigid, opinionated and resistant to change. They both tend to be persistent when working toward their goals. If they have a plan, they'll stick to it until they get what they want. They usually share a reluctance to change, preferring a stable and steady road. If they have dissimilar ideas about something, they may end up in a never-ending cycle of struggles. Scorpio won't budge because to them, it would be a sign of weakness. And Leo may think Scorpio is being too self-righteous. If they understand they're on the same side in the larger scheme of things, it's much easier for them to remain productive.
What's the best aspect of the Leo-Scorpio relationship? It's their shared sense of dedication to one another and the projects they partake in. Both Signs have very powerful, yet strategically different, personalities. They are seen as a strong pair by others, and their dedication to fulfilling their desires makes theirs a strong love match."
From: http://www.canada.com/findit/astrology/love/compatibility/scorpio.html