The San Francisco City Clinic has a great chart showing what can be transmitted to each partner during various sex acts. Here are the risks for 'Anal sex - top'
known risks: Chlamydia, Crabs/Scabies, Gonorrhea, Hepatitis B, Herpes, HIV, HPV (warts), NGU, Syphilis
unknown: Hepatitis C
Full chart at
http://www.dph.sf.ca.us/sfcityclinic...s/stdchart.asp
Read After Sex Hygiene at
http://www.dph.sf.ca.us/sfcityclinic/drk/faq8.asp
I agree with tevaboi- I piss & wash my dick afterward even though I don't BB.