The size difference is due to there being two separate litters! The PeeWees were born via C-section Easter Sunday (huge bill$$, luckily not mine). They weren't accepted by their actual mother who is a very tiny semi-feral. So Josephine (the Porker's mama) took on the two infant kitties. It was the first time Josephine ever spit at me, the night I brought the two PeeWees home. She wanted them THAT badly. Well she has been an exceptional foster meowmie to them luckily! But now the Porkers are looking at their adoptive siblings as play toys. Yikes!