I've often felt like this momma Pig. She's all empty on the bottom side. She was laying on her stomach when we walked up and all of the piglets were running amuck. She was sleeping.
She gave two or three grunts and rolled over to the side like the picture. All of the piggies came running, filed in and latched on to the full side. The one in the front or the one next to it must have not latched properly because she gave some different grunts and then used her front leg to disengage it and then let it reattach. Every few succles from the piglets, and they were in rhythm too, she grunted almost with pleasure. She looks like she's smiling and from the way that her teats became less and less engorged during the feeding I would say that she was.