I suffer from this... Even in my late teen/early 20s, prior to Internet Porn, I could fuck forever without cumming. I wanted to go into VHS porn. I attributed it to my concerns about shooting the box and getting the girl pregnant...
Fast forward to my middle age + vasectomy and I cannot even come close with the wife on our rare occasions. I just cannot get ramped up for her to blow my load... I've tried to introduce things, ideas to spice things up without success... The wife rejects and I just get bored with vanilla. I focus on her, she gets a sloppy wet pussy and gets off, but I'm always left hanging...
Even with SPs now; they either have to be brand new or else I'm now down to the wire with repeats imagining someone else.. I can stay hard, but completion is getting tougher and tougher. I need way more mental stimulation now.
I can spank a shot out regularly - even a 3-4 times per day, but it doesn't have the same "satisfyingly drained" feeling that you get with a woman.
When do guys' dicks finally give up?