too much information

Allison spent the night with David, Dennis, and me at the lake last night, and we had a fun evening together. This morning we got up and went to swim class and Allison went with us again. When it was over, we stopped and got barbecue sandwiches and Dennis' favorite beverage (Bug Juice) to take back down for lunch. We sat down at the table with Gran and she asked Dennis how his swim class went. He thought for a minute and then said "I went swimming. My penis was cold." What do you say to that? We all stared at each other, secretly wondering if he really said what it sounded like he said, but we all heard the same thing.