My boy, who is also my husband, has acquired a boy, (an actual boy - he's 26, which to me is almost an embryo in terms of experience), primarily to mentor him, and it did take some mental adjustment for me to feel comfortable with it. I don't share my boy's feelings for his boy, so there's no question of a triad. We've discussed bringing another man into the relationship, but it would take a really good match for a number of criteria (such as mutual attraction all around, poz, no meth, full-time job, intelligence) before we would consider taking it to the level of having them live with us and fully commit to the relationship. Plus, both my boy and myself are bipolar, (and the four of us get along very nicely, especially when we're both in an up cycle at the same time), which adds an extra set of challenges to a triad.