A more likely scenario is that you have the ability to bring out the sexual best in a romantic partner, while giving yourself the short end of the stick (no pun intended). But the 8th house rules more than sex. You could also get stuck with taking care of partnership resources because "you're so good at it," or, conversely, keep getting partners who want to "take care" of it and do you out of your fair share. Perhaps you become too dependent on money from others for support, or too much of what you earn goes to support others. You might tend to accept other people's values (your family, group or society) too readily. One other thing. The myth of Chiron can actually come alive with this placement. You could have a talent for healing or rehabilitating others, but not yourself.
Chiron is associated with the emotional wounds we receive early on in our lives. The sign Chiron is in will dominate but the house placing will show in which area the personality is motivated and into which they will put their efforts. In the eighth house, it may indicate losses through the death of loved ones.
Chiron in Scorpio or the Eighth House: The path to growth and life may come through repeated experiences with the great mysteries of life, death, birth and transformation. These are the powerful mystics whose inner visions dominate their life-path. They may have empathic and psychic abilities which are sharpened through experiences of profound insight .They may suffer deaths and losses when Chiron is adversely aspected, but each loss will be followed by benefits or insights that boost them to new levels of understanding.
Chiron in the 8th shows many psychological woundings which you would need to get through. Once you get through the problems, you would then be in a position to Heal others (through the wisdom you aquire in your "dark night of the soul"). Maybe through psychology, sex, or as an astrologer...?
But first you have to go through your own ca-ca. :-)