Christian didn't want to open gifts too fast with everyone watching him open embarrassing gifts even though his mom already blabbed about his diapers to everybody.
Normally Christian was pretty careful eater, but not having a napkin and spaghetti is messy anyway which caused a mess and he hoped he had just ruined the shirt instead so that he never had to wear it again.
Christian reluctantly sat down in the chair because it would have been even more embarrassing to have both of them put him in the chair and be fed his meals while wearing a diaper.
Christian made his way into the dining room where George and Bart were at and already felt self-conscious about wearing just a diaper around the house and also worried someone might look inside.
Christian was happy that his mom agreed to pants because it's one thing that has gone right for him the whole weekend and he didn't want to do anything that would change it.
Christian was hauled again to the bathroom to be changed out of his poopy diaper and the thought occurred to him that normally he would have just used the bathroom like any other teen boy at 16.
Christian stared in shock at his mom when she said he wouldn't have pants -- the kids at the party already saw his diaper, but no one else and he was hoping to put a stop to all the embarrassment that she was instigating.
Christian knew that the boys were doing it on purpose, but there was nothing he could do about it and he didn't want to make George mad, otherwise it could be worse.