Greetings.
Almost nil. This would fall in safe sex.
Please feel free for your follow up questions.
Dr. Arun
Hello,
A single episode of this kind puts one under certain risk if there is precum and the anus has got some abrasion or sore, by around 0.4%. Not much by the numbers but it is still termed as risky behavior.
Feel free for your queries.
Not as much risky as unprotected anal sex. But as I mentioned precum and open sore or abrasion can transmit the virus.
Doctor (MD)
MBBS, MS (General Surgery), Post-doctoral Fellowship in Sports Medicine