Well I am 35 first time I had sex I was 17 I had never masturbated before that , , as I was getting older and having more sex and more partners , I realized its a mental issue , you can come in 2 min or 50 min it depends on your mind concentration with the help of tricks . Before 17 I tried alot to masturbate never cum , I couldn't concentrate even I was watshing lot of porn , witch gave me pain in my balls , probably no one cares about finishing fast , so if you want to stay longer ,
Play more with your partner before you put it in
Try to stop and put it out every cople of minutes , by changing positions
Don't concentrate on the sex while doing it , let your mind think elsewhere , untill your partner finish , than .....
It helps to masturbate but 2 times at least , one time doesn't make different
Understand that every time during sex u get hard and soft ( not too soft )again it means you will last longer its like you are starting again
And oh yeah it was super. Just little backache.
I tried it once and I came in my gf vagina