I'll give you the same answer I gave you the last time you asked this question... Sure it's possible if you have a teeny weeny and since you don't know if you did the deed or not I guess we can all assume that you have a teeny weeny.
Is accidental vaginal penetration possible without male's knowing and feeling? Can it really happen?
No it’s not possible!
Only if you have to use tweezers to hold it.
No unless you're really dumb
That would take both parties being naked. There is no accident in that.
Okay... I am trying to look at this question from other angles to see what the heck you might be getting at... You were with a commercial sex worker so I assume you mean prostitute right? So are you asking because he/she ended up with HIV and your terrified you have the virus now? Or do you have the virus but can't figure out how she/he didn't catch it? Or did he/she have the virus and your test came back negative so far and your freaking out? Go to a doctor and get a full medical work up! And PLEASE put a condom on it!
Or do you need to see legal advice because either you are being accused of rape or you are accusing one of rape? You need legal advice, a lawyer, a police man, etc.
Maybe you need new friends? Did they play some sort of cruel hazing joke on you and you woke up naked in a bed with a stranger laying next to you?
What ever the true reason is behind your questions... You need to take it up with the proper channels. On line question and answer sites are not gonna be able to justify your HIV, rape or hazing, etc.
Perhaps under the influence of drugs, it might happen.
Perhaps if you were unconscious and still had an erection you might be unaware it happened---but if you were unconscious, then it would hardly happen accidentally.
But if that happened without your knowing and feeling, you might want to kill yourself now; because life is not going to be any fun for you in the future.