Can I catch an STD from a "good girl"?

2

Any one that has unprotected sex is at risk of getting an std.

If she has never had intercourse before, never had oral sex before, never had anal sex before and hasn't shared needles then she isn't likely to have an std. If she is a virgin then she shouldn't have had any thing to do with sex (including anal sex and oral sex) before.

Virgins can carry the oral herpes virus which is what causes cold sores on the mouth. If she gets a cold sore don't let her give you oral sex. Cold sores can be passed from her mouth to her partners genitals if she gives oral sex while she has any signs or symptoms of a cold sore.

If she doesn't have any thing that could be passed on when you have oral sex or intercourse you're not likely to get an std. But she could get pregnant if she isn't on birth control or if you don't use condoms.

Unlikely, but still possible. But since she'll be getting naked with you, you should be able to see if she's got any unusual sores or rashes before going in.

And the condom goes a long way to preventing STDs... providing it doesn't break.

you never know, she probably could have an STD, even if she seems like a "good girl" but if you use a condom then you won't get an STD