Stanley Pines [ 1 ]

It was the second time Mabel and Dipper had came to Gravity Falls for the summer, they were now 13, nearing their 14th birthday, but there was one more birthday coming up, and even sooner... Stan and Ford’s! So, Mabel naturally decided to throw them a birthday party.
The party was simple: balloons decorated the Mystery Shack, now under Soos's ownership, with a limited number of guests, and not a single tourist in sight.
But as the festivities went on, Stan couldn't help but feel overwhelmed, he found the noise loud and oddly enough, exhausting. He had no idea what was happening, he was usually fine in situations like this, he always ran tours of the shack when he was Mr. Mystery and was great at parties, so why was this so SUFFOCATING?!
Stan was sitting on the couch, tapping his foot on the floor and staring down when he suddenly felt a familiar six fingered hand land on his shoulder. "Stanley, are you oka-" Ford begun, voice laced with concern, but before he could finish, Stan whirled around and punched him in the face, sending Ford stumbling back, placing a hand on his cheek where his twin's fist hit his face.
Guests turned to stare at the brother’s, and a few gasped. Even though Ford was the one who got hurt, Stan looked like a deer in headlights as his whole body tensed.
Stan’s gaze flicked from person to person before he rushed to the bathroom and locked the door behind him, leaning his back against it and sliding down to the porcelain floor.
Just as Stan was about to break down, a knock on the door brought him out of his panic.