The context of the following conversation is Ash needed to clean her dog up after he rolled around in the mud and got Cameron's towel dirty.:
Ash says Hey can you help me clean up this dog?.
The friend responds Sure. What happened?.
Ash responds He rolled in the mud. Plus, he got Cameron's new beach towel dirty!.
The friend responds Well, it was going to get dirty anyways. Poor dog. Are you filthy buddy? Let's wash you up!.