white stuff out of backside

Question
i have two male guinea pigs and when i put them together, my guinea pig named pigger sprays out white stuff out of his bottom and i was wondering if they would ever get along completely because i put them together alot and they stay at the same stage where they vibrate,make noises like a motor,and their fur stands on end.

Answer
Hello,
what they are doing is normal dominance issies. You shouldn't seperate them unless blood is drawn or they are in a full blown battle. The dominance issues should settle down.here is a link about companionship and introducing.
http://www.cavyspirit.com/sociallife.htm#Introductions

You could try their bathing method. As they say a guinea pig that bathes together stays together. :)