I used to have an issue not lasting more than 10 minutes, but since Mrs and I have been getting into the lifestyle (short time I may add) our sex life has dramtically hightened. We now have sex almost every day and I have found that this has increased my staying time considerably. Sometimes too long though (ie we had a FMF last weekend and it took me an hour an a half
to get off, but the good thing is both ladies were completely satisfied)
It used to be that it would take quite a long time to get Mrs off but she has now started having her ogasms earlier and more frequent.
My advice, have as much sex as you both can possibly handle, until you walk funny if you have to. Practice makes perfect. facelick