Composite Pluto in 9th house:

Pluto is the planet of death and rebirth, regeneration, digging down to get the bare facts, obsession, power and fanaticism. You are bound to have a very powerful effect on each other just by being in the same vicinity. This position of Pluto will also have that same powerful effect on others in your environment when you are together. Pluto in its obsession tends to make people fanatically believe whatever point of view they have. Pluto usually corresponds to the egos involved and if you are overbearing to begin with, then this powerful energy can either win people over to your side or make you their enemies, as they see you as a threat. This position of Pluto can provoke people to cause you harm physically if you don't put a lid on it and know when to back off. You can actually wind up doing this to each other as well, so caution is advised in how you use this energy. If you can keep this "power" under control, then you may gain a psychic rapport into the basis of your relationship, an unspoken understanding that only the two of you can comprehend. Use this energy to make positive changes in your relationship because as you do, you will transform the people around you as well.

This interpretation is from the Relationship Composite Report.

Do you and  your partner have composite Pluto in the 9th? What's it like?