Thanks for the replies! Still can't get a photo up but both frogs are acting totally normal, still little piggies. I noticed it seems to differ in size depending on how he's sitting and sometimes almost disappear, leading me to believe it's a normal part of the vocal sack. My boyfriend felt his throat and said it feels the same as the rest of the sack, just like loose skin. He calls at night, so we're almost definitely sure he's a male. Does this sound normal?