Don't worry my female ball python does that every now and then when the rats are smaller then her normal size.If you do not notice a small lump after he eats the 2 mice try a rat pup of the correct size to the thickest part of his midsection.Do not get upset though if he does not gulp up the rat pup as the scent is differant from his usual mice.Be patiantOriginally Posted by dannyd