What to do if you have sex for the first time as a guy?

Yes use a condom if you don't want pregnancy or STD involved. If you do not want to use a condom, make sure you take complete responsibility when you do have sex.

Yes, use a condom to prevent pregnancy and STDs.

If you're not sure you're not ready. you need to take sex ed.

YES, use a condom and yes, it will help prevent disease...and GO DO SOME RESEARCH FOR CHRISTS SAKE!!!

yes

Yes you definitely should use a condom but be aware that no form of birth control is 100% safe against pregnancy or the transfer of infections.

You are one of the few persons to ask this important and smart question. Using a condom correctly will prevent nearly all unwanted births and 99% diseases not counting oral sex of course.

Use a condom.

Use the condom. I

I've met people who have contracted hiv on first contact

Yes, you should always use a condom. Unless you're trying to have a baby or live with an STD.