The context of the following conversation is Alex took a test and got a very good grade on it and told his parents.:
Alex says I tricked my parents when I got home from school and told them I got an F on my Science test but I actually got an A+.
The friend responds Oh my God, how did they react, were they mad?.
Alex responds My dad was instantly upset and my mom just kind of looked like she didn't believe me, they were pretty quiet about it.
The friend responds How did you tell them the truth?.
Alex responds I waited until after dinner and pulled out the test and put it on the table and said someone here deserves some ice cream haha, they cracked up.
The friend responds That is hilarious! You're lucky your dad didn't get angry at you first!.