Toronto BBFS

Well this is odd. I was with an SB last night. We had a couple rounds before dinner and were rolling around on the bed after. I'm old and we had drinks so any hopes of me going pop again were minimal. I do like the intimacy though so we made out and I went down on her . She figured she would try to give me an air start. I was enjoying it but I was only about half hard and didn't think I would come. She looks up and smiles and goes "wow no warning?" I said "what?" I absolutely did not feel myself come and it was pretty liquidy and I can't help wonder if I peed. I did actually debate going for a pee before we started. I didn't feel myself go pee either and I did pee after . She assumed it was cum so I did not say anything. I'm pretty sure she would be mad if I pissed in her mouth. Anyone ever just let a load go without feeling it?