No, I don't think it's something that you should be very concerned about at all. There are a wide variety of factors that could be preventing him from having an orgasm with you, and if you've been able to do it in the past and haven't severely changed anything in regards to physical stimulation, it's very, very unlikely that it's your fault in any way.
Originally Posted by Chelisha
yes you should, cause then if he cant cum it wont be as fun for the both of you, its better when it getsmessy xo
This isn't necessarily true at all. I wasn't able to have an orgasm during sex for a while, but it still felt great and I don't think it was any less fun, really, than when I was able to.
It's probably due to how he masturbates, males who really squeeze and jack their penises during masturbation find that they can't achieve orgasm during sex because their penis isn't use to the more subtle sensations of vaginal intercourse.
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As everbody else said it's not an urgent cause from concern. Someone doesn't need to ejaculate to make sex any more enjoyable or "fun". Just talk to him about and see if there is anythign either of you can to to assist him.
It is definitly not your fault, just a personal issue he has.
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It may be nerves, he may have something else on his mind, or maybe he gets off in a different way. This is in no way your fault.
However I would recomend talking to him about it, and see if it's a problem for him. He may very well not care, or maybe this is something you need to work on together, really a conversation about this would probably go a long way.
Concerned? Hm. I would be. But it's probably not too serious. I'd probably ask him what's been on his mind lately. Maybe have a conversation about some things. Perhaps start the night with a back rub/massage to get him more relaxed. Maybe even give him some time away from sex and try more romantic cuddling and kissing. He might just not be in the mood right now. You can always ask him and talk to him about it.