The whole "arm locking" thing in anime looks so cute but it's awkward and embarrassing in real life. For starters, if she locks her arm the way pizza butt has there, her hand would be flailing around her stomach, not comfortably against your arm. Secondly, when they show a girl with both her arms wrapped around a guys arm, where the hell is she walking? If she was proportioned correctly, she'd be walking in a very uncomfortable position as one arm would be reaching across her body while the other is reaching forward, all the while walking in such an unbalanced position.
Fuck anime and the way it makes me want to do annoying things.