Big Mac was busy bucking trees on the farm like he does every day. He approached a tree and prepared to buck it like he would any other tree on the farm but he didn’t realize Twilight was hiding behind the tree he was about to buck as she intended to prank him. The workhorse prepared to buck the tree by placing his weight on his front hooves and commenced the bucking motion. As he did so, Twilight used her magic to grab hold of the stallion’s briefs and yanked them up to the sky, lifting the earth pony’s flank into the sky and wedging the briefs into his flank. Twilight giggled from behind the tree as she heard Big Mac squirming about, trying to get out of his wedgie.