The blow from Sarah seemed to shake Alex. She suddenly looked very serious as she turned to face her.
“What the hell was that”, gasped Alex. “Just get over it will you. Beating me up isn’t going to bring him back to you!”
Alex sat back, looking quite beautiful with her hair all dishevelled and her top half open exposing her well filled bra. Almost all the cup covering her left breast was visible.
Sarah drew nearer, with her broader back and heavier frame, looking anything like a “friend”. “You deserve it, and I haven’t finished yet” she said, glancing at me. “Unless you are going to get him to stop me”, Sarah added.
“Alex”, I said, “This looks serious, I thought you were just play wrestling! I don’t want you all bruised and battered when your mum gets back later, or blood all over the carpet for that matter”.
Alex looked sulky. “It’s OK” she said, “I can handle her”.
I looked at Sarah and gave her a little shrug of the shoulders, and she launched herself onto Alex. Sarah’s extra weight took Alex down, and I watched the brunette squirm on top of my niece and grab a handful of her hair.
“Yow” yelped Alex as Sarah hauled Alex’s head to the side, turning her so that she could slap her across her exposed cheek. The sharp smack echoed round the room, but was just the for runner of more assaults on Alex. Sarah clawed at Alex’s body, digging her fingers into Alex’s firm flesh, finding the tummy, mauling it, working her fingers into the bare skin between Alex’s jeans and cropped top.
Now that was a sexy move I thought, and in a glance I’m sure Sarah knew that I was enjoying this.
Sarah had Alex’s arm up behind her back now, pinning it with one knee, Alex lying on her belly. The brunette girl punched down into Alex’s body, striking her in the kidney area. It was beginning to look like Sarah had done this sort of thing before.
Alex gasped and cried out, but was not about to give yet.
“This is kinda fun” said Sarah, sliding round, turning Alex on her side, and punching hard into my niece’s half bared stomach. I watched Sarah hit Alex six or seven times in the stomach without reply, getting more and more turned on all the time. It was a good job I was wearing baggy jogging bottoms! Alex tried to struggle but Sarah had her pinned. She deliberately pulled Alex’s top open and yanked at it, until it tore, baring more of my niece’s beautiful torso. She hammered a few more unopposed punches into Alex’s two thirds bared belly, then drew a gasping Alex up and pushed her back against the sofa until her chest and bra pushed out from the shredded top.
“Alex?” I asked softly.
“No....wait....” replied Alex in a whisper. “If I can......”
Sarah didn’t wait to hear the rest. She curled a punch up into the cotton bra cup containing Alex’s C cup left breast, almost smacking the half melon out of the cup. Alex mewled sexily and shuddered.
Sarah hit again into the underside of the firm breast, and this time the quivering breast sprung out of the restraining bra cup, and the bra split in two, the left cup dropping to lie on Alex’s lap. I could hardly believe it. For a moment I just couldn’t react, and that gave time for Sarah to deliver several more well aimed punches into my niece’s naked left breast, hitting into it from both sides, and from underneath, and finally punching directly into Alex’s brown nipple, squishing it into the very firm breast meat. Alex looked helpless. She took more punches to her body as Sarah ripped off the rest of my niece’s bra and top, until I was watching my beautiful niece, completely topless, being punched like a punch bag with no resistance or defence. The blows beat into Alex, until Sarah began to throw Alex around the room, hitting her several times between throws. Alex had ceased to talk back now, and she looked out on her feet. Her eyes were glazing over as she took more and more punishment from Sarah. The two teens were putting on an awesome display for me.

Eventually Sarah began trying to knock Alex out, using first her fist, then her knee into the face. I could see a broken nose looming and moved in to break it up. Sarah unbelievably asked me to hold Alex so she could hit her! She also invited me to play with Alex’s breasts!

Sarah seemed very pleased with herself when she left. It had all happened in a little under 30 minutes and the boys upstairs playing their Xbox clearly hadn’t heard a thing.
I threw Alex her bra and red in the face she put it on, and went looking for her top.
“You said not to stop it” I ventured thinking Alex would be mad. She wasn’t.
“I’d have been better off carrying on fighting you!” she joked, rubbing her body gingerly.
“Well I wouldn’t punch you quite like that” I laughed, “and maybe you do need practice”.
Alex went to find another top then came downstairs again and knelt on the sofa facing me.
“I can wrestle you know” she said mischievously.