About a year ago I opened up to my wife and shared my fantasy of one day sharing a dick with her. We are swingers and over the years my interest in experimenting with sucking another man with her has aroused me. Lately she says our sex has changed and that I’m spending too much time on her breast and not the rest of her body. She believes I am fantasizing about doing it but in reality I’m really just enjoying sucking on her boobs. This isn’t new she’s mentioned this before I tell her, but she says I spend too much time on one and sometimes I stop penetrating her while I do it. I explained to her that is me just trying not to climax due to the excitement behind it. It seems I can’t convince her because she keeps asking if my mind is somewhere else. I’m genuinely just caught up in the moment because I LOVE the way her breast feel in my mouth. If it was another woman it would be the same. She also mentioned that she doesn’t like when I put my thumb in her mouth while in missionary. There have been times before where I finger her and watch her suck it off and watching her with her mouth full while I’m in side her turns me on. I’ve seen her with another man there several times and I love seeing it. She told me doesn’t like it and that she thinks I’m watching weird porn (which I’m not). Are my desires to have a MMF three some causing me to mess up my sex life with my wife? When i first told her about my fantasy she was turned on by it and we had sex after while role playing and she said it was very sensual. Now it seems my new interest is coming between us. Thoughts?