to be honest, i think because your bunnies are indoors you see them alot more and if they had poopy bums you would most likely notice without actually having to pick them up and look.
just keep a close eye and check if you feel ou need to but i wouldnt check all the time if they are clean good weight bunnies.
i know overweight bunnies are a risk x
Just keep an extra eye on Lucy hahahha :lol:
Hun am sure they will be fine, like SJ says!
Lucy says shes not the only one who might be dirty!:lol::lol::lol:
Lola was most offended!
But your bunny should still be going outside for exercise so the risk is still there.