Zero. You did not have penetrative anal sex.
I didn't feel if it's entered, but I think no. I asked him, and he told my it didn't entered. What's my odds?
Had you penetrated him you would have known.
I don't know his status, but who knows... he's sexually active.
I'm calm about this, even if my penis entered his hole, a think my chances still low, because i'm circumsized and I passed alcohol in my penis after this, and it didn't hurt.