I want to add something, are you having fun? This is all about enjoying what you are doing. I bet almost every woman has tasted cum, I swallow, some don’t. I hope every man has tasted vaginal secretions, pussy juice as we call it, and I am sure there is some urine involved. A teaspoon of urine most likely won’t cause harm, more might. Urine is not sterile and might have bacteria in it. We have experimented, I’m not a fan, and I do enjoy swallowing after oral sex. Have fun!