Medic was out on the battlefield when Heavy said it. They were near the middle of the map, and Medic was charging Heavy whilst attempting to dodge bullets whizzing past his head. Heavy caught sight of the other team's Medic and Heavy fast approaching. "Doktor!", he called. Medic was busy getting up Scout, but was within earshot. Just then, RED Heavy took down soldier and Demo. BLU Heavy cursed. "Their medic is better than ours!", he yelled to Sniper. Medic looked up.
Back at the base, Medic was in the operating room. He was busy with Soldier when he heard Heavy call him from the resting area. Medic sighed, a bit sad that Heavy didn't think he was good enough, and put down his bonesaw. As Medic approached, he saw no one else in the room. Maybe Heavy asked them to leave. What for, though?, Medic wondered. Heavy seemed rather sheepish once Medic had come to a stop, maybe a foot or so away from him. "Heavy would like to.. apologize for what he said earlier. It was stupid of him to say so in front of you, when is isn't true." Heavy said quietly.
He took Medic's hands in his own large ones, and then put them down. Medic's face was bright red, and his heart was hammering. Heavy didn't really notice. Medic suddenly grabbed the collar of Heavy's medical shirt, and pulled his face down to meet his own. Medic had to tiptoe to reach Heavy's lips, and gave him a short but very passionate kiss. The two hugged eachother gently, and Medic left to continue his surgery, while Heavy watched.