I have never been in a poly relationship before, but I really think I am polyamorous. I am in a serious relationship with my boyfriend who I would consider mono but would be open to poly. He has always mentioned that he would like another girl to join us. The thing is, he is more thinking of it sexual-wise, and I would actually like to form a relationship with the other person too. We haven't 100% discussed it because the situation has never come up yet, but once it does we will sit down and talk it all over and stuff.
Ok, so here is the thing, I am in love with my best friend. I have been friends with her for close to 2 years. We can talk about anything and I feel completely comfortable with her. The only problem is that its been a platonic friendship. Whenever discussing sex related topics it never even got close to involving us. She is a very open person and is always looking for new things to try (she is pansexual). I think she may be up to join my bf and I but I'm not sure if she would want a relationship more than just friends. I really just need some good advice to bring it up to her without making things awkward and to get her opinion. I am just so confused.