Me and My Pig(s): complete newbie to pigs

[chubchub]

hello everyone.
as the title said i have never had guinea pigs before. and 2 days ago i was given two 8 week old boars.

They run into their house whenever i enter the room, and seem to still be sorting out dominance. but as they only come out when they cant see me, so if im at the laptop or in my bed and so i cant see them only hear.
so at the moment im hearing a lot of 'burring' or 'rumbling' as they call it followed by a lot of scuffling noises like they are running round or jumping. i think all the rumbling is coming from the same pig, unless their voices are identical. i do not know whether this is normal or not because i never hear any particularly loud noises or squeaks.

okay scratch that iv just seen them both rumbling at each other, one tried to mount the other then the one he just tried to mount tried to mount him back ... now they're getting along ... they confuse the hell out of me, as they sleep together no problem and i have seen them sharing food.
be very grateful for any help and advice you could give me

[akstrohm]

How big is your cage? Do you have multiples of everything (water bottles, food dishes, hideys, etc.) in different parts of the cage? What kind of hideys do you have? Is there anything in particular they fight over?

Overall it sounds pretty normal. Only separate them if they draw blood.