I'd really have to disagree with that 10 minutes or bored, idea. It varies from person to person. My husband has become my perfect example of the diversity. Some nights he's a two pump chump (he penetrates twice and ejaculates) But he's the sort of man that can keep going and have multiple orgasms. But for that very first one, it can range from ... Five seconds to over an hour.
And a **** ring doesnt necessarily delay ejaculation, its more for maintaining a solid errection. But if were looking at outside help here, They sell desensitising sprays and creams and condoms at places from walmart to an adult store.
realistically, guys only last about 10-15 minutes unless theyre bored with the sex or have trained themselves to go longer. believe me, most guys never last long. handy tips for that are while youre performing, visualize something that is completely non sexual and unappealing, but not too horrible, otherwise youll be a limp fish. another excellent idea is rub one out right before youre going to go, you know.. they also sell rings at the adult shops to help delay ejaculation, tantra is said to help train you to not just hold it, but to increase your entire sexual experience. theres lots of ways to hold off, just get creative. and shell probably appreciate your experimental side.. we usually do..
There isnt a normal time, really. Dont forget you have other methods of pleasing besides your penis. If you arent the type to last very long, exhaust those options first to make sure your partner's happy.
As for a Quick stop, Give this a read. http://www.wikihow.com/Stop-Premature-Ejaculation