The context of the following conversation is Alex grasped both of their breasts firmly and then took off running out of the dining hall laughing.:
Alex says I think that was the funniest joke I have ever heard I thought my breasts were going to fall out of my bra when I was laughing.
The friend responds My dad told me that joke when I was about five years old and I still remember it.
Alex responds I ran so fast out of the dining room I almost tripped over the ladder over there.
The friend responds I'm just glad you liked my joke that much.