This is a genuine question, and not a bragging show. I typically last a "long" time. I will happy do a first round for 30-45 mins without cumming. I can do back to back sessions as well because I will still be erect. However, I have noticed throughout my sexual encounters that the preference varies. Some partners prefer short sessions of multiple rounds. Others are discouraged by the fact that I haven't ejaculated after 7-12 mins. l've also had some that like the back to back sessions. So which is the most preferable and how long should I go. Because I know how to control my ejaculations but I've always thought that longer is better. However this doesn't seem to be the case. Can you advise on your most preferred length for penetration.