Technically you cannot get a sexually transmitted disease if you have never had sex, but you can get herpes or warts just from coming in contact with one.
Question: when you say that you had oral sex with the girl, did she give you oral or you her? If she had a "cold sore" (oral herpes) and gave you oral sex, then you could very easily get genital herpes from it. Or vice versa. Or if she has genital warts and you rubbed on them, you could very well have contracted it from her.
Most likely it is nothing serious, but I would definately get checked. As for your girlfriend, just ask her if she has anything. Or, if she has been tested. But, before you two become "active" or even continue doing what you do, you both need to get tested.

Actually you can get an std even if you've never had sex. And you can get them from oral sex and as you say slight contact with the genitals.

That doesn't mean this bump you have is anything though. Could be a shaving bump like you first thought or it could be something called a papule, which is a harmless bump that a lot of guys have. Or it could be something more.

As far as the wart being transferred from your hand, no. Warts that appear on the hands, feet, etc. Are a different strain of virus than the ones that appear on the genital, so that's outta the question.

Just to be sure, go to the doc, get it checked out. It is possible that you got something from the girl you did oral with. Just get it checked out, let your current girlfriend know and be prepared to answer lots of questions because if you do have an std, she'll think you lied about being a virgin. Good luck! Let me know if you have any other questions.

And oral sex is unprotected, I found out the hard way. See my post:

http://ehealthforum.Com/health/topic11517. Html

It is common knowledge that you can get stds from oral sex.
And I did say above that you can get stds even if you have not had actual "intercourse", but being as it is a sexually transmitted disease then if you had no sexual contact, then obviously you could not have an std. But, with the contact that you did have, I would definately get checked just to be sure.