Let me answer your question with another question. Is it safe to play Russian roulette? And obviously, the answer to that is YES! /End sarcasm.
Yes, it is certainly possible. While a shower is certainly going to reduce the possibility, it does not eliminate it. Using a condom is always a good idea.
Make sure she is on birth control, but this does not protect either of you against STD's.
It depends if the boy can ejaculate and the girl has started her started periods.
Yes. The condom could malfunction.
If she has sex without insisting on a condom - YES !
This is a NO NO!!!!!!!!!!!YOu are not to touch someone without their consent...If you have any respect for the girl and common decency, you will NOT do this. If the girl wakes up and finds you touching her, without her consent, you will get more then you bargained for....
Yes
This is easy, show her you have a condom and turn the lights out when your about to have sex, tell her to wait a second so you can put the condom on and then dont... Wait dont do that! You might knock her up, they make a foam that the girl can spray into her vagina before intercourse, use that and youll be baby free and condom free.
The odds are definitly against. The world would be without humans in only a generation or two if everybody got their girls pregnant that way. I would say you are pretty safe.
If you reach climax and sperm gets into the girl, there is a chance of pregnancy.
I would say that he is lying and that he is guilty of sleeping with and using that condom..
All you gotta do is have sex without a condom....you also have to make sure she wants it like you do.