depends on your partner and what she wants...I let them go first anyway....for me that is a big turn-on..Iam no challenge, so whenever she wants me to" finish" thats fine with me....time is not important, its the quality of the moment that makes the session ideal...
i can last hours if its right. no joke. but a good session is 30 minutes. i may be a freak but sometimes i have to say ok i need to cum now and then i have to concentrate then i cum. i dont see how anyone cums after like 5 minutes. im not saying oh im a stud. i actually think its a bad thing