You were baking cookies for the party you had invited him to attend with your family. He wasn't able to help you as he had run late from a meeting. You fed him a cookie as he helped you clean, not paying attention to the ingredients around the kitchen.

He felt thirsty suddenly. He picked up a water bottle from your fridge while you packed the cookies. Harry was in the middle of taking a gulp of water when it hit. His throat started to get itchy and burn almost instantly. He swallowed the water hard, trying to relieve the sensation only for it to start to get worse.

It spread down his throat to his chest, and then his airways. Harry gasped, putting the water bottle down on the counter. He started to cough and wheeze, bringing a hand up to clutch the front of his shirt. He wheezed between coughs, his throat constricting against his breathing.

You noticed, walking up to him as his face started to turn red. Harry was still coughing violently, one of his hands gripping the front of your shirt tightly as a way of staying up. His face was completely red now and he was starting to get lightheaded from the lack of oxygen.

He tried to get another word out, but it was cut off by another harsh cough. His knees buckled under him, holding onto you tighter so he could lean against you for support. You started to panic as he couldn't tell you what was wrong. But it clicked. The cookie.

Harry's legs threatened to give out as he started to double over. His airways felt like they were shutting up and it made it harder to breathe. He coughed harder, his free hand reaching out to grab onto you for support until he collapsed.