I was fingering a girl and I cut her inside with my nail and I notice blood a little blood on one of my fingers. I washed my hands and put a condom on my finger and began to start again. I got a check up 6wks later and I was negative. This occoured 10months ago. My gf also got a checkup 8months after I met her and she was negative and we dont use condoms, we practice unprotected sex. We have sex every weekend. But is it possible to get a gum infection. I ate vagina one time and I had a big white puss on my gums like a pimple. I popped and it feeled up again. Later on it went away. This happen 2 days after I ate her out. I showed her she wasnt worried. But this happen 10months ago. My friend is sort of a specialist and he said it was ok it was gum infection. What is your opinions anyone?