I have been in a relationship with my bf (27) for about a year and a half now. We have had no issues so far, bought a house together and are generally happy. However, I feel like I am not enough for him anymore in the sexual aspect. We openly talk about desires and agreed a few months ago that we would be fine with having sex with someone else as long as there's honesty between us and the connection with the other person is purely sexual, no romantic feelings.

I genuinely want him to feel satisfied (whether or not that means sex with someone else) and able to remain open to me about it. He wants to have sex with someone else but feels awkward because it feels like cheating on me. I'm afraid this can lead to him feeling trapped in our relationship, which is exactly what I want to avoid. He told me he dreamt of me having sex with someone else and he enjoyed it. I can't help but feel like this is frustration projecting onto me: he would like to have sex with someone else but feels like he can't, evem though I told him multiple times that I'm okay with it. I'm scared that this might take a toll on him and would make him unhappy in our relationship.

Do you have any advice on how to handle this? How do you ensure your partner that it's okay? What kind of agreements or rules apply to your relationship regarding sex with others?