That man or woman or person who shares all your most intimate sexual moments with you on a daily or long-term basis, he or she being of either sex, or, occasionally the same sex, or, sometimes, being a mix of sexes, or occasionally someone of
no sex at all (but that does not often happen). In normal sexual relationships, mostly being someone of either
one sex or another who, with his or her partner of choice, enjoy
carnal knowledge of each other on a long-term basis, as according to the sexual preference of either partner.