Sorry if I didn’t use the term “cake” properly lol I'm pretty new to this world. My boyfriend and I have been dating and I discovered that all this turned me on quite a bit, like a year or so, when I found out that there was a girl who was sending him nudes. He told me right away and explained that he told this girl to stop. At that moment I told him... What if you don't stop...? Lmao. From that moment on he asks her for nudes and we do things with them while I watch him sext with her. Until now they couldn't do anything else because she was in a relationship where her partner didn't let her have sex with others (he didn't care if she sexted). And I know that soon this girl and my boyfriend will probably have sex, but I would like to be part of it in the future. I don't even want a threesome, I'm just interested in seeing how he does it with her. I wonder, how do we talk to this girl about this without it sounding weird? We know that she is quite open-minded in the sexual sense and we don't think she would mind, we even think she would like it (she has a significant praise kink). But we don't know how to do it since we are so new to this. How did you do it when you started?