In adults, HIV is transmitted by:
1) having unprotected, penetrative vaginal or anal sex, or
2) sharing IV drug needles with other IV drug users.
You are not at risk for HIV, even if you had any cuts or scrapes. Oral sex can be a risk for other STDs. If you have questions about those, please visit the STD forum:
http://www.medhelp.org/forums/STDs---STIs/show/98