(John Phillips). Boys and girls have a good time together;. Boys and girls you know they’re birds of a feather.. Like two sides of a coin. They are forever joined.. Heads or tails---choose one or the other;. Be my friend or be my lover.. Boys and girls (boys and girls) should always have someone;. Boys and girls (boys and girls) should never be lonesome.. (Should never be lonesome). Heads or tails---choose one or the other;. Be my friend or be my lover.. Like two sides of a coin. They are forever joined.. Boys and girls (boys and girls) have a good time together;. Boys and girls (boys and girls) you know they’re birds of a feather.. (Are birds of a feather...)