depends upon the std but most likely , yes, almost all can be spread by what is termed "heavy petting" i.e. when genitals touch , this includes fluids from genitalia.
its protection that sort of stretches in the vagina so the penis can fit but just like a man's condum prevence STD's and sperm to exit into a women's body.
Condom is a protective layer between penis and vagina. It helps to avoid unintended pregnancy and STD. There is female condoms available as well, but male condoms are safer to use.
i dont have a vagina but yes, you can contract an std if the girl has an std whether its visible or not. So it would be great for the both of you guys to get tested for any sexually transmitted diseases. Condoms work great but celebacy works better.
No, and you can get std's and also the vagina can have one penis at a time, and I do not think a lady would not like wear and tear and pain.
probably an std
No, not if she is clean.
you might have a STD
it means you have an std
Go to the doctor. You could have a STD.
Gangrene.
No unless you have an std.
If he didn't have a STD and you misteriously get one from him.