Ejaculated in underwear while making out with a prostitute, Risk of HIV/AIDS?

Friends,

I was with a prostitute last night. I had fingered her vagina during the foreplay and she was wet at that moment. After a while i had put a condom which was over-sized.  I never took off my underwear. She was not wearing anything. At the end, may be 15 minutes later, while she was riding me, I ejaculated. When I got up, I found my underwear was wet because the condom due to its over-size had slipped out.

I want to know if there is a chance of getting infected with HIV. If there is, then what are the preventive measures I can take?

Any help would be deeply appreciated.

Thanks

[Teak]

You were never at risk of contracting HIV.

[Teak]

You were never at risk of contracting HIV.

[rsharma]

All I was worried was is the fact that the wetness on my underwear might have come in contact with her wetness as she was not wearing anything. I had never inserted in her vagina.

[Teak]

You never had a risk period.

[rsharma]

Thank you very much Teak :)