I know a couple successful triads the key to their success seems to be that one member of the couple dates the individual first. They form a successful relationship then the other member of the couple is SLOWLY brought in and then forms their own seperate relationship with the individual. Dating as a couple works as well as playing the lottery for a retirement plan.
Why do you feel the need to share a person. Why not share the experience of each of you exploring relationship with separate individuals.
40 yo straight female
Married in the eyes of the government to Butch since 2001...
Murf my monogamous second husband has been with me since May of 2012.
In a V relationship with an average 60/40 split of time. Only due to Murf's and Butch's crappy work schedules.