It is perfectly Norman for the first few times to have premature ejaculation
With time you will be able to go longer
My first time I think I did not even last 30 seconds
Nothing wrong just have fun

There are Sticky posts on each of the Forums for a reason. Your question has been addressed by one of them.

Squeeze & Training Exercise for Controling Premature Ejaculation

Just read around, there are plenty of these threads probably in this forum, men's sexual health or pleasing her.

If you are wondering if its just you?!? then NO b/c like we said a thread like this gets started a few a week...so no you are not alone.

Some people also will use the longer lasting condoms...the ones that have some of the desensitizing stuff added to the inside of the condom.

Ashley, in addition to the answer about how to last longer in the other link, here is a link to answer your question about why a guy can last a long time during oral and not reach a climax.

How Do I Get Him/Her to Orgasm From a Hand/Blow Job?

[QUOTE=ashley2007;176763]I'm 17 and I have started to recently have sex. I get aroused easily enough, but while having sex I seem to ejaculate quite fast, lasting up to about 2 minutes. Is this normal? I can last about 10-15 while receiving oral or whatever =/[/QUOTE]

[QUOTE=foxdan;176765]It is perfectly Norman for the first few times to have premature ejaculation
With time you will be able to go longer
My first time I think I did not even last 30 seconds
Nothing wrong just have fun[/QUOTE]

[QUOTE=ashley2007;176779]Im not exactly new to it, I've had it about 20 times now =/ same each time really.[/QUOTE]

Sorry first post said “I have started recently to have sex" there fore I presumes you have had sex only a few times a.
Sometimes different positions give different stimulation try a different position