Yup. If you go from the ass to the pussy it can happen. I know a lady it happened to.
She swore she would never do anal. Then she did. Did it all the time. Her bf was going from ass to pussy. She got sick and almost died!
The Dr. had to ask if her and her bf were doing it. She said "yes". He said "stop it".
Two weeks later she was back in the hospital with it again!!! LOL