Lafiel on 06 May 2013
| wfz said: Why do sexually transmitted diseases even exist in the first place? I'm sure i learned about this years ago, but I forget... |
I'm guessing here, but afaik basically all mucosa are a good breeding ground and an easy entrance to viruses and bacteria and animals/people tend to extensively connect two of those to each other during sex.
Another thing is that very small veins can rip, so blood to blood contact is a possibility as well.
