Disclaimer: The usual stuff. There are JKR's characters. Hogwarts is hers. She holds the rights to all that stuff, etc.
Updated 10/17/2017 - Editing, cleaning up, etc.
"I'm not sure how much we'll able to practice. Everyone else was busy," Ron says as he stands next to the Quidditch equipment and holding his broom in his hand wearing his Quidditch robes. Ginny floats in the air next to him on her broom.
"It's ok. It's kind of nice." Ginny grabs a beater bat and flips it in her hand. "Want to pretend the bludger is Malfoy's head?"
"Ha, sure." Ron picks up a beater bat, opens the Quidditch ball box, and lets a bludger loose.
The bludger flies around and heads towards Ginny as she's circling midfield. She swings her bat and hits the bludger towards the goal she's facing.
"Nice shot." Ron yells up towards Ginny as he flies past her going up and towards the goal. The bludger flings itself towards where Ron is flying. Ron swings his bat and hits the bludger straight towards Ginny who quickly swings her bat, sending the bludger back towards Ron. Ron swings and hits the bludger towards the other end of the stadium.
"First one to miss has to clean the house over Christmas break!" Ginny yells up at Ron and starts to fly around the stadium.
"H-Hey!" Ron yells back, smacking the bludger away again and then flying around himself. "That's no fair! You know you're a better beater than I am!"
"Exactly!" Ginny yells from across the field with a huge smile on her face, smacking the bludger away.
The two keep hitting the bludger around the field for several more minutes. "You've gotten better Ron!" Ginny yells hovering above him.
"I just don't want to clean the bloody house over the break is all." Ron hits the bludger towards Ginny, who hits it towards one of the goals.
The bludger starts turns around and starts heading back towards Ginny when she hears Hermione's voice from the field.
"Hey you two! Are you going to be practicing all night?"
Ginny looks down at Hermione, and then suddenly remembers the bludger. Ginny tries to swing her bat but is too late, as the bludger hits her bat in mid-swing, ricochets off and sending Ginny's bat flying.
"Ginny!" Hermione and Ron both yell. Ginny watches the bludger with wide eyes as it swings around and heads straight back towards her. Ron flies from his position towards Ginny as fast as he can. He stops in front of Ginny just as the bludger gets there, but can't swing his bat in time and gets hit in the chest with it.
"Ron!" Hermione screams as the bludger hits Ron off of his broom 50 feet in the air and he starts to fall. Ginny flies down and catches Ron just feet from the ground, loses her balance, and falls with Ron in her arms the rest of the 3 feet. Ron, though unconscious, holds the bludger in his arms.
"Ron! Ron, are you alright?" Hermione yells and she runs out to Ron and Ginny. Ginny is still collecting herself as Hermione grabs the bludger and sticks it back into the Quidditch box. Ginny collects herself, gets on her knees, and starts to lightly shake Ron.
"Ron? Ron? Are you alright?"
Hermione checks Ron's pulse and looks him over. "I don't know if he's broken anything, but he seems alright. He's just lost consciousness for now. Wait here with him, and I'll get help."
"Ok." Ginny starts to tear up as Hermione run from the field. "I'm sorry, Ron."
Ginny holds onto Ron's hand as she waits for help to come. She lowers her head so her mouth is next to Ron's ear. "Please forgive me." Ginny whispers, slightly lifts her head up, and kisses Ron as he lay on the Quiddich field.