I won't bother to put this in 18+ spoiler as this is already in a sensitive thread. A relationship where there is an emphasis on openness both in relation to sexual activity and honesty. Like I said in another thread, as a gay man I always have concern for sexually transmitted disease as HIV still poses a risk disproportionately for gay men... As such I would rather know if a partner had sex outside of the relationship rather than be monogamous and said partner afraid the relationship would end given a revelation of infidelity..
Put simply, I don't care to have multiple romantic partners living in a commune like setting, but rather have a one-to-one romantic relationship that is open to having said partner, and myself, having sexual experiences outside of the relationship...