Read and understood your concerns.
The poop on the it has tremendous load of bacteria, hence if there is breach in the skin due to trauma of intercourse either of you can get infection.
You should immediate cleaning and may be take a course of an antibiotic.
Check with the gynecologist in case to confirm that everything is fine.
Hope this helps you.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.