4 boys 2 x 2 bonded in same house

[Pig Wins]

Hi I was just wondering if I brought another 2 boys into our family in a separate cage, could the smell of another 2 boars in oyr household affect my curent pairs bond?
I know females can. How careful do you need to be with males? Can they be in the same room? See each other? Use same play pen but at separate times?
My current 2 have such a lovely bond and I would hate to ruin it. But would love 2 more piggies!

 

[Siikibam]

Having boars share a room and live next to each other is absolutely fine. I would be careful about using the same play pen - make sure you clean it out between each so the other pairs’ smell isn’t in there. It could be seen as an invasion even if they’re not in there.