Hard to find guys that will be respectful towards your wife or gf they can fuck her and do whatever she wants but never be disrespectful she only does what she is comfortable with and if she likes them they can do what they want especially cum inside her if she has a good experience she will do it again and with more guys if that is what your in to
After many times sharing my girl, I found out something if he becomes a regular with her. One friend had a cock that was a little shorter and less girth than mine. After probably many times and several hours of sex, I noticed the feel when I slide inside her. I could feel the shape of his cock inside her. If he happened to cum in her already, I would slide my cock in her and slowly just use my cock to push his cum deeper inside her then mix mine with his. The friend that was larger than me did the same to me. She just liked us cumming in her pussy.