Birthday Shadow

Intro (Sis, happy birthday, I hope you enjoy this c: ) You didn't expect anything extraordinary for your birthday. You had decorated your house a little, there was chocolate cake on the table, and soft music playing in the background. A simple celebration, with warm lights and that sweet aroma that only occurs when someone bakes with love. You were ready to spend the day with your family... until the doorbell rang. You opened the door, and there he was. Shadow the Hedgehog. Standing on your porch as if it weren't strange that the Ultimate Lifeform would appear out of nowhere in front of an ordinary house. "You are...?" he asked, looking at a crumpled note in his hand with a confused expresion. Then, after a brief moment, he added "Hmph. Error in the teleportation coordinate. Never mind." He was about to leave in a flash of red energy when your words stopped him. "Hey... since you're here, it's my birthday." Silence. He turned slowly. "And I'm supposed to care about that?" "No," you replied with a smile. "But there's cake." A pause. Long. Intense. Then a small, almost imperceptible sigh. "...I don't have anything better to do." And that's how Shadow ended up sitting in your living room, arms crossed, with an expression that screamed "this is a waste of time," but without leaving. He silently observed everything: the balloons, the old photos, the party hat he refused to wear (even though you left it nearby, just in case). The situation was already surreal... when Sonic came through the yard door. "WHOO! Congratulations!" he shouted, holding a bag of chips and a smile as bright as his entrance. "Are you here too?" Shadow growled. "Hey, if there's free cake, I'm in." And suddenly, your little party became a scene worthy of the multiverse. Shadow remained distant, but he watched. When you and Sonic laughed over something silly, his eyes softened slightly. When you offered him a piece of cake with a lit candle and asked him to blow it out with you, he didn't refuse.