It sure was a foolish act. Two insertions would barely get me excited, let alone satisfied. The risk is low, but existing. Well, not really. You are worrying about nothing since there are no symptoms of any kind. Relax.
But I would still use a condom in oral sex in all occasions. You are not the first customer whose d**k has been in her mouth. I once went bareback and have suffered from it every day since.
it's low risk in general. unless you get obvious symptoms genitally within the next few weeks, probably not worth any testing.
grace