So many great things here! I don't know what to add! One thing to start, don't feel that ED might be an issue unless a doctor has measured you before and after being 39, your natural body may have changed and that is life, no worries, the above comments and below will get you being the new biggest and strongest lion ever that will live with you now for the rest of your life! I'm 43 and never had this strong EQ in my life even in my prime of early 20's.
1. C-Rings, try the large C-ring over cock and ball after a water pump. I have gotten wifey to tell me she doesn't even feel it, and I get that girth. That is the most comfortable with longevity and girth. But keep buying more C-rings and see which works. Don't get any of the ones that add clit stimulation for now. Focus on what get's you that thick cock.
2. Water pumping for me is the only way to go and increased my EQ from 85% to 99% the hardest EQ ever in my life.
3. Be a multi-orgasmic man (search google for the book) to get that great stamina and give wifey that D many more times a week
4. Try this vitamin combo, you should feel a lot more cum which will get you feeling like a Lion in the sack, my Wife loves the extra cum. Your wife sounds like she will love it too!
Start with 1 & 2 (3 if needed) then add 4 and then 5 a few weeks and weeks after and see what combo works for you. #5 is tricky with some saying it helps, some not, and some depending on dosage, hurts the stomach when taken.
(1) Zinc, 20-50mg Strength, Taken 1 time daily = 20-50mg (with food) (some vets recommend 20 mg strength depending on your diet, many have tried 50mg with success, it depends on your diet and how much Zinc you are getting)
(2) Lecithin, 1200mg Strength, Taken 1 time daily = 1200mg (with food)
(3) Bromelain, 500mg, Taken 1 time daily =500mg (This is for men who are unsure if they taste good. This is Wifey approved and verified, she is shocked that I don’t taste like anything or that it is no longer salty. (with or without food) (not a substitute for eating junk or not working out- only after you are on your A-game but nothing else works)
(4) L-Arginine, 1000mg Strength, Taken 1 time daily = 1000mg (no food)
(5) Pygeum & Saw Palmetto, 160/50 mg Strength, Taken 2 times daily = 200mg (I could not take Pygeum in large doses, my stomach would hurt, so I am doing the mix of these with food) (some vets say this does not work for them, others love it- you must test on your self)