posted October 02, 2012 03:31 PM
Curious...How many of your have synastry with Sun in the other or theirs in yours and/or Composite 6th?I have it with my husband and curious as to how this has played out for you. 
The typical comments about the 6th say:
Sun in a partner’s sixth house:
Synastry: http://www.skyviewzone.com/lovematch/sunsynastryhouse.htm
When your Sun is in your romantic partner’s sixth house, he or she likes to do things for you and assist you in practical ways. You inspire him or her to be more creative in his or her work, set useful goals, perfecting his or herself through analytical skills, craftsperson like attention to detail, and practical work and service. If your relationship partner’s Sun is in your sixth house, you may find yourself taking on more chores and domestic tasks, following his or her lead on projects, daily schedules and routines.
http://www.astrologyfiles.com/synastry-house-overlays-sun/
The sixth house has not a positive reputation in astrological tradition. Here the sun person and their partner find themselves joined in a rather odd situation: that of routines, chores and duties. The sun person motivates the sixth house person, energizing this often burdensome part of life. At the same time, the sixth house person sees their partner as useful and helpful. Through this relationship, the sun person learns to have more concern for routine, health, habits, and work for other people which might not always be pleasant. Good for professional relationships and wherever it is important to work together to fulfill responsibilities.
Composite:
http://theastrologyplace.blogspot.com/2010/09/composite-sun-in-housespart-1.html
Sun in 6th house: The partnership is focused on helping others or working together. Liz Greene says, “The composite Sun doesn’t shine as overtly as it does on the composite MC or Ascendant. The energy of the relationship usually flows into everyday life. The composite Sun requires living in the moment. The core of the relationship serves others in some practical way. The 6th house is known as the house of healing, and the relationship may serve to heal not only others but the couple themselves. Also, there may be a shared love of skill and craft. The 6th house doesn’t necessarily involve boring responsibilities; don’t forget that this is Mercury’s natural house. The composite Sun in the 6th house suggests a relationship which needs to “do” something useful in life. It is not focused on making a lasting impact on the world, like the composite Sun in 10th house, but often great satisfaction comes from creating something together that makes everyday life better and more rewarding."
http://www.linda-goodman.com/ubb/Forum1/HTML/017745.html
Composite Sun in the 6th House. This is a challenging position for the Composite Sun, as it suggests a basic inequality in your relationship that could undermine it over time. One of you may be in a helping or teaching role, for example. Other possible scenarios are a large age gap between you, an affair in which one of you is married to someone else, a boss/employee set-up, and so forth. Whatever the case may be, one of you may feel that your needs are not met, or that you are sacrificing something in order to be together. One person's helpfulness may be welcomed at first, but resentments can build over time. The best way to handle this energy is to put your egos aside and avoid expecting too much from the partnership.
Here is how it has played out for my husband and me:
I live with Lupus and I have to admit that at times he has been my caretaker. We BOTH tend to get bogged down by the mundane if we don't work hard at making time for play. We do both have Venus in Leo and we light up eachother's 5th/7th house so we do have fun. But the other thing I want to say personally about the 6th house is that I find that most marriages are about the mundane no? I mean bills, cooking, cleaning, fixing, organizing, working...so if you can do those things together and enjoy yourself then well then that helps out a marriage! At least it does in our case.
Also - famous couples with 6th composite - Brad and Angelina - They have all those children and I can guarantee you that they live a life of service (which is very Virgo and 6th house) so it could play out like this too...