Welcome to our Forum. Before I answer your question, let me point out that in our experience, when clients claim that they are asking questions for a friend, they are usually not being truthful and that they are actually asking their own questions. Pretending to be someone else is silly.
If you are asking a question for a friend however, you will only get this single reply since the purpose of our Forums is to provide advice directly to concerned persons.
First, most commercial sex workers do not have HIV. Thus "your friend" is unlikely to have been exposed. Even if he was however, HIV is not transmitted by transfer of genital secretions on one person's hands to another or on or through contaminated cloth or clothing. Even if the towels used in the situation you describe were contaminated with someone else’s genital secretions and even if that person happened to have HIV, there would still be no risk at all of transmission of infection and no testing would be needed.
EWH
well actually no, it was me... i was being silly yes, just very ashamed again
Glad to help. Please do not worry- you are not at risk. EWH