You guys make me nutes sometimes. Really. I know that's blunt, but it's true.
No one HAS to do anything. As of the current date, unless you KNOW you have a disease, no one can sue you if you give them something, and there are no laws that say you have to protect yourself. Assessing your own risk, your partners, and the risk you both pose to the rest of the world is your call, and your call only.
However, unless both people have been tested and are, by at least two tests, STD-free, and all through that time and after have no real contact with the world period (not all STDs are sexuall transmitted), I couldn't possibly say there is no risk. is there a low risk? Sure. But there is always a risk.
Look: you're going to have to use a condom at some point in your life, unless the person you are with is the only person you are EVER with (on lots of levels) and vice-versa, and that so rarely happens, it's hardly worth discussing. Condoms are easy to use, they make parts of sex better than without one, they make near any other birth control method close to 100% effective, and they're simply the responsible thing to do. To be frank, if you're trying to make ecuses this early in the game, my call is you aren't ready to be having sex, end of story. Again, I know that sounds harsh, but it's the truth.
basically, as far as I'm concerned, if I, for instance, hadn't played as safely as I have most of my life, I would have essentially upped everyone else's risk of disease I've known in my life, including you guys. If I thought that was the case, I'd be pretty dissapointed in myself.
Only you can assess your own level of risk, as nothing in life is risk-free. However, I'd advise you to think about why you want to take risks you don't have to, especially when safeguarding agaainst them doesn't do anything to lessen or worsen your experience.