My BF and I have been together 18 months. The first time we slept together he found the roles suddenly reversed for him and he found himself immediately assuming a submissive role to me. It came as a shock to him as he’d always identified and been a “top”. We have an active sex life but from very early on - pretty much the first time he tried - when he’s tried to take the more dominant role in bed, and we have full sex with me as the bottom, he quickly loses his erection. We are working towards him being a comfortable bottom and as I’m his first we’re taking things slowly. He adores me and at night he’ll cuddle back in against my cock with his backside. He’ll often take my arm that’s across him and cup my hand around his cock and balls. We love each other and we have no other problems with our sex life. He gets very turned on to the point of being hard but the whole sex with me thing just seems to make him anxious or for some reason go soft. I don’t want to make it worse but I also don’t like the thought that he’s worried about it silently. I’ve been like that before with guys where I felt they were much more dominant than me and I just couldn’t get it up. It wasn’t that I didn’t fancy them or think they were hot or didn’t want to sleep with them. It’s just my brain was playing a different game! Just conscious that it could be something he’s just fallen into or his brain has hard wires itself now to seeing me as the dominant partner. How do you change that or can I?