Im Malaysian and sorry for my English .  2 days ago I received unprotected oral sex from a bar girl . I was drunk that day and couldn't remember much of the details . I did wear condom while she performing oral sex for the first time . I took off the condom and continue with unprotected oral sex. ( no vaginal / anal penetration ) .  The lady is so scare and not willing to perform oral sex to me . ( I guess she worry of std infection too) . It's quite a prolong oral sex ( maybe 4-5minute) until I ejaculate . 

What scare me off she curious about the blood on the tissue ( actually the room is dark and not able to justify it ) .  I asked her a few time to clarify whether is blood and finally she say no . ( but I doubt ).

I quickly check on my penis and there is no cut or wound . And more over, there is no blood appear on my penis as well . And my pants didn't have any blood contaminated too .  

But I'm still worry.  Am I hiv risk of it ? What is my chance of getting hiv ? 

I think I make the statement not clear enough . I have no idea whether is blood on it because I don't see any blood at my side .  I don't see any cut or wound and there is no sign of fresh blood around my area ( penis , pants ) .  When I asked her and she say there no blood . I hope I just over worry and I hope is some kind of misunderstanding . 

However , assuming there is a blood . Is there any risk of contracting hiv this way without any cut , sore or wound on my penis ? I been paranoid of this and I keep on thinking about the possibility .  As you mention there is no one case of hiv happen in receptive oral sex , but what if there is blood ? Is the reassurance still the same ? Sorry I really worry about this . 

I read many post saying that saliva is not infectious instead is protective against hiv transmission . But how could it happen ? Hope to receive your reply soon doctor .