Belka and Poof tend to talk a lot when they're being petted during cuddle time. On their own, each pig settles in with a quiet muttering but when held together their voices combine to form a squeaky duet. You can hear their vocalizations in the video above.
Everything started out nicely until Belka got a little too far into Poof's personal space and received a simultaneous headbutt on the nose and warning snap of teeth. Satisfied that she had proven her point, Poof then proceeded to lay her head down on the fleece. No further piggy action occurred until Belka became intrigued by the camera in her face and started to chut inquisitively at the lens.
Knowing her, she was probably trying to determine if it would be a viable snack.