Most men cannot continue to have sex after ejaculating, because they go limp, and you can't really thrust with a limp penis. Furthermore, if you are using a condom (as you should be) you should take your penis out imediately after ejaculating, because the condom is likely to slip off once the penis goes limp.

I don't think that will work. Most men's penises like girly said, go limp and then are sensitive after ejaculating. Maybe you could try, each person is different.. have your gf try on you what I tried on my guy. (he wasn't premature but wanted to continue until i came) after he ejaculated he stayed in me and I would tighten my pelvic muscles around him. He said he could feel it and any other time he loves it but after he came it would hurt. but who knows maybe since you are 20 years younger then him it may work on you. just a suggestion

Some guys do stay hard after ejaculation (or can get it back right away), if you are one of the lucky ones... keep trucking, lol.

BEG TO DISAGREE A GUY OF SEVENTEEN SHOULD BE ABLE TO KEEP GOING I KNOW WHEN I WAS THAT AGE NEVER WORRIED ABOUT IT GOING LIMP , HE STOOD UP THERE PROUD AND ARROGANT AND LOOK FOR MORE , A GUY AT 17 SHOULD HAVE NO PROBLEM WITH HAVING SEX THREE OR FOUR TIMES AND BE READY FOR MORE IN THE MORNING

I would try that if you loose it a lot and fast... then try masturbation befroe and then wait and have sex... cuz then it won't be so ... gotta go gotta go ... it will just take it's time more. So try trhat

i was watching the sunday night sex show, an this guy said the same thing....an sue said to have your gf or whoever do oral, or hand or something to you, anthen ater you have sex u make up for it by doingher a favor...she said the 2nd time u usually go longer an dont have that problem