Wife and I haven't included another man in our bed for 11 years. The thought is super stimulating sexually for myself and it seems to be acceptable for her when we fantasize. She chats with a cruise worker (a handsome Jamaican man) she met weeks ago. I find myself excited but super jealous at the same time. He called her thick and juicy which she said "I thought you might like some thickness." I find it extremely hot but I get that sinking gut feeling too. We were having sex last night in doggy style and she started telling me that she thinks he would love to have her in that position and how he likes thick and juicy women like her. I told her he would love it and would love to fill her with his cum. I told her he was probably a lot bigger than me and she told me that she wanted to see his dick which made me absolutely explode in her. It felt heavenly and so hot. Now I'm back to being a little insecure but she tells me not to worry that I'm number 1. So now for my question.