Urine contact question - medical professional only please...?

I purchased some urine from an adult auction site. I got in my tub and poured it on my arms, legs, chest and in hair. I masturbated and showered thoroughly. I understand that urine is generally sterile and does not contain HIV. I also know that there is only a theoretical chance of any STDs from it with no known cases to date. However, I have also read that if somebody has a UTI, or is it gets in an open wound, something could be ped on. I tried hard to keep the urine out of any bodily openings but might unknowingly have gotten some in somewhere. I also had a papercut about 3 days before and a few chest rash bumps. Would these old things be open wounds? (I may have got some on the chest bumps or the paper cut.) Being that the urine was at least 3 days old (many things can't live outside the body very long), the seller had a positive reputation on the auction site, she ures me she is disease free and with the precautions I tried to take, what if ananything could I catch?