So we're currently on holidays and my gf of 5 years will leave tomorrow while I stay with my family for a few days longer. Originally because of work, but now she decided to also invite her good friend over. She has done that a couple of times and there was never anything sexual but you could always sense there was something special with those two. She and I also agreed we would take the chastity game to become a chastity lifestyle for us, she finally discovered she really likes the control and is doing a splendid job of fulfilling my fantasies. We also just ordered a new cage (thanks to @inhershoes if you're reading ). Having a rather troublesome sex life before, I love the new her and the way things have turned now. This was one of the reasons why I agreed to have her seduce the good friend coming over tomorrow. We discussed it a lot and came to the conclusion that it benefits our relationship, her personal sexual development and possibly fulfills the submissive fantasies that she still has despite being my mistress. We planned all the details, I helped her to put together some outfits she can wear, and we generally had a lot of fun doing all this. I always got turned on by her being used by other men while I wasn't allowed to cum, but this is becoming reality faster than I ever thought. It's possible that nothing much happens and the fuss was all for nothing. However, it's equally possible she gets her anal virginity taken by another man. I'm generally positive about the whole thing, excited and a bit scared, but we will see. Tomorrow evening I might be getting sexy selfies from my girlfriend who will then present herself to another while I will be sitting with my family and maybe have time (and allowance) to edge under the shower for a few minutes. The really hot part is how our relationship has developed in a relatively short time and how it will continue to do so in the future. Will my cage fit? How many orgasms will she actually allow me per year (if any)? How will our sexual encounters in the future change? Currently we have established me wearing condoms so I don't cum which makes me her living dildo or fucking machine if ou want. We still have sex sometimes but I never orgasm. I can't really tell when i was last allowed to cum inside of her (which is another extremely hot thought to me). Will she turn to other men for pleasure and excitement more often from now on? I will update with the experiences we make in the upcoming days.