Nothing special. They are mammals, and do it just like most mammals. no special sounds, behaviour or similar is involved. if u wanna c what it looks like search it up on Utube....
If you have a male and female and are worried about it, I've heard that you would hear a lot of rustling around.
well just like any other guinea pigs they can be and are allowed to mate
no
Yes, guinea pigs must mate to produce offspring.
well guinea pigs will mate and make themselves but its really just called nature
Sometimes rabbits will try and mate with guinea pigs no matter what sex they are. However the rabbit cannot impregnate the guinea pig because it is a different species.
Yes, they will if allowed to.
Just as much as humans.
No, they need to mate to have babies.
It's unheard of.
Nothing. But she wont mate while she is pregnant. Guinea pigs dont mate unless they are on heat.
guinea pigs go into heat, they go through the cycle but do not have a period (bleed).
Yes. But if they do the newborn will probally have problems.