Sex File: Our sessions go on for too long and I stop enjoying it — is there a solution?

Consistently extended sex sessions are unfortunately more likely to cause extreme discomfort than to give her an orgasm

By taking control and becoming a more active and assertive sexual partner, you are likely to find he achieves orgasm more quickly - as well as making the experience more varied and enjoyable, hopefully for both of you. 

I'm in my 30s and have recently started dating a new man, but am having a problem I've not experienced before: the sex goes on for too long. After a certain point I feel I stop enjoying it and just want it to be over. Is there a solution to this?

Lots of men, especially those who grew up watching porn, misguidedly believe that being able to have sex for ages without climaxing is a real skill.