Sammy watched as Dean's face cycled swiftly through shades of puce to delicate green. A hand clasped over his mouth, Dean made a desperate dash for the bathroom. Sounds of retching ensued.
Sam hadn't expected the laxative in the soda to be this effective this quick. A most gratifying result.
Sam smiled, picked up the quarter Dean had dropped on the floor, popped it in the slot. As he laid down on the gently vibrating bed to enjoy the magic fingers, he mused on the gullible foolishness of big brothers.
That would teach Dean to try and steal Sam's turn…