Chapter 74 is now up at AoOO. For complete chapter and complete story go to my profile here, and click on the second link.
From Chapter 74:
On their way back up to the castle, Harry and Hermione spied several students near some juniper bushes and a small cluster of birch trees. Harry didn't need Hermione's cat-senses to know something was wrong.
"What's the matter you little fairy? Did being that close to a girl frighten you?" McLaggen's pompous loud voice carried. "Aren't you going to answer me...?"
McLaggen kicked out heavily and connected, wrenching a cry of pain from someone. Harry's blood began to boil and he started jogging up the hill with his wand in hand and his angry wife by his side, her own wand at the ready.
"Funny, I never took you and the Bogtrotter for Nancy Boys, Weaselby..." jeered McLaggen's friend, issuing a kick of his own at the red-headed boy who was doubled over in pain on the ground. Harry heard a sickening crack as one of Ron's ribs broke.
Without warning, Harry shot a stunner at Kenneth Towler and he dropped like a stone. McLaggen whirled around, and his eyebrows arched in surprise when he saw Potter bearing down on him.
"What do you care Potter?" McLaggen whined, "I thought you hated the little blighter..."
Harry answered with another stunner, knocking McLaggen back against one of the birches. It hadn't been a very strong stunner, as Harry wanted Cormac conscious. He strode up to McLaggen and kicked him in the balls. Cormac grunted in pain.
"I never hated Weasley you Tosser," Harry snarled, "I hate Bullies!"
Harry hit Cormac in the face once with an open hand to drive the point home. Hermione almost grabbed Harry's arm, but stopped herself when she realised that Harry was finished striking the groaning Fourth Year student.
"I didn't like my mate being a stupid git himself, but that doesn't mean I'm going to let a cretin like you hex or beat the piss out of him-or anyone else for that matter. Remember that, and tell all your sodding mates that those days are over here at Hogwarts as long as I'm around."
