Hi. NC for this thread. I'm hoping to find some reassurance from men on here. I've been with my BF for about 8 months. Sex is generally really great with us and I'm really happy. Only issue is occassionally he is unable to cum - this generally happens if we've had sex the night before...and then this happens in the morning. This can be an advantage to me as he goes longer and I'm more likely to climax myself. I can't help though but worry that somehow I'm not exciting him enough and that's why he doesn't always cum. From a man's point of view is this an issue at all...could he be getting frustrated and I need to be trying something else with him? I've asked him if there's anything he'd like me to do and he says not and he's just worn out. We're in our 40's. This doesn't happen all the time just every now and then. Thanks in advance.