I knew I should never have trusted Misha to keep a secret. It had been barely a week since my first "encounter" with Miki, but she was relentless. I wouldn't exactly call it dating, but we were having so much sex that I thought it might kill me. I'd never tell her that, of course, as any romp with Miki Miura was more active than trying to race Emi Ibarazaki; trying to get her to slow down would just make her see it as a challenge, and go even harder. On the plus side, I've lost 5 pounds and my breathing is getting better. This can't be what Nurse meant when he encouraged exercise, but it works.
 
The secret Misha slipped, however, was something far deadlier than a sex-induced heart attack. As she had been the one to set me up with Miki in the first place, I've been telling her a lot about how it's going - including the fact that Miki is much more open with her body that Shizune had been, which I enjoy. I can't imagine why she'd need to tell Shizune that, but she did. I found out the hard way.
 
I was just chatting with Miki on Friday afternoon, discussing our plans for the weekend. Most of our "dates" simply consisted of her dragging me behind some corner and ripping my clothes off, but I was hoping to ask her on a real one this time. Before I could, though, Shizune stormed over and slammed her hand on the wall between us, making herself very clearly known.
 
[Translate for me, Hisao! I need words with this harlot!] She signed rapidly.
 
"Hold on, Miki." I said quickly, but she was already patiently relaxing against the wall, a large grin on her face as she watched at Shizune's boiling anger. [Calm down, Shizune. I'll translate for you, but I won't insult her like that.] I replied in sign, albeit much slower.
 
[Tell her if she thinks she can win in a size contest, she must be blind!] She signed, grabbing her breasts for emphasis afterwards. I started to think of a decent way to give the message to Miki but it seemed ultimately unnecessary. Miki responded immediately, "Let me guess, Hisao. Princess here thinks she's better endowed than I am." I started numbly signing this to Shizune, the shorter girl alternating between glances at my hands and a withering glare at Miki herself. "Good, you're signing this to her already." She looked directly at Shizune now, saying "It's obvious who the winner is, here. Hisao chose me." I had no choice anymore, just translating everything literally in the hopes they'd settle it between themselves.
 
[I wasn't even trying!] Shizune responded. [I could take him back from you with both hands behind my back! I just want you to know who the real queen is, here~] She finished, adjusting her glasses and smiling up at Miki as if challenging her.
 
"Alright, princess. We'll put this to the test. Meet us in my room tonight at 9. Wear something sexy, you'll need it." She laughed. Shizune glared at her once more, then smiled and walked away confidently. "Seems like you'll need to come by too, Hisao. You should probably get some rest now, we'll want you fresh when you get there." She grabbed my ass with a wink, then walked away, leaving me to make my own way back to my dorm, wondering about what might await me in the girls' dorm that night.
 
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I went over to Miki's room just before curfew, still unsure what to expect, and knocked cautiously. "Who is it?" Miki called out teasingly. "It's Hisao." I responded.
 
"Come on in, it's unlocked!" She shouted. I open the door and stepped in, closing it behind me before looking around. I was stunned to see Miki sitting on her bed, smiling at me, wearing her favorite black boyshorts - and nothing else. "Stop gawking and take a seat over there, dork. I bet the deaf bitch will be over any moment now, and then we can really get started." She pointed to a chair just the side of her bed, granting me a good location at which to look over her stunning body. Given that most of our time together was spent in direct physical contact, I hadn't yet had a good opportunity to really take in the sight. Her pose, leaning back on her bed, showed me all of her long, toned legs, leading up to her tight waist and abs. Her large bosom rested gently on her chest, the curves all melting together beautifully.
 
Soon enough there was another knock on the door, and Miki got up to answer it, her perfect brown breasts bouncing as she walked. She looked back at me and giggled, then covered herself with her left arm before opening the door with her right. I could just barely see Shizune staring furiously at Miki's blatant nudity through the crack in the door before Miki grabbed her, pulled her inside, and slammed the door closed once again. My jaw dropped once again; Shizune was wearing her normal school skirt, but paired with a dark blue bikini top that accentuated her already impressive cleavage to a new level. She almost looked shy as she first got her bearings, but as she noticed me staring at her, she grinned evilly and posed for me, bending over to give me a better view.
 
"Seems like Shizune came here to win," I called over to Miki as she came over to stand behind her guest. Shizune signed a question to me quickly, and I relayed it to Miki as I was wondering the same thing. "Alright, what are we here for?"
 
Swiftly and unexpectedly, Miki pulled a single string on the back of Shizune's top, and the whole thing came off. "We're gonna have a little contest, here." Miki grinned as she looked down and noticed the tent forming in my pants, and started to massage Shizune's now exposed breasts. They were similar in size to Miki's own, but far rounder, and they bounced easily in her sporty hand. Surprisingly, Shizune did not resist, instead starting to moan as Miki pinched a nipple and ran her bandaged stump down Shizune's belly. Suddenly, she pushed my ex-girlfriend to her knees in front of me, then got down on her own next to her. "Rules are simple: tits and tongue only, no hand or mouth action. Whoever finishes our lovely judge first, wins~" I quickly signed this over to Shizune as Miki undid my pants, and contrary to the protest I expected, Shizune instantly pushed her rival aside and claimed the first round, trapping my rising erection between her breasts the second Miki had fully extracted it from my stubborn boxers. Seemingly desperate to prove her worth, she worked them up and down the shaft rapidly, leaning forward and licking the head each time it poked up from in between her soft globes.
 
Miki watched happily for a short time, her voyeuristic side showing as she savored the sight of another girl doing her best to pleasure me. Soon enough, though, she decided it was time to step in. Pushing Shizune aside just as Shizune had done to her, she claimed my crotch once again and I sighed as I was enveloped in her perky breasts. Rather than Shizune's furious assault, Miki liked to tease - gently squeezing from one side, then the other, or sometimes both at once while she danced her tongue on the underside. Shizune had a gift, but Miki had practice, and it was showing. I started to moan in pleasure as Miki worked wonders on me, then suddenly I felt something completely different.
 
My eyes had been closed, trying not to let the beautiful sight before me end the experience too soon. They snapped open, however, as I needed to see what the heck was happening to my lower body. Despite both girls being extremely competitive, they seemed to have wordlessly agreed to work together temporarily. Both pairs of breasts embraced my member at once, moving around in sync with each other as the two women stared at each other and smiled. Cooperation had brought them a new sensation, and I was the lucky subject of their discovery. Simultaneously, they came forward and licked the tip, and I could take no more. Leaning back in the chair, I reached my orgasm, launching several jets of jism straight into the air, where they eventually landed on both girls' faces and breasts.
 
Shizune was stunned briefly, her glasses coated and leaving her incapacitated. Miki, however, had no such disability, and leaned forward, grabbing Shizune's face and pulling it towards herself to lick a few drops off her cheek. She moved down to scoop up some more as it dripped down Shizune's breasts, then lifted it up to deposit in the girl's mouth with a sensual kiss. It lasted for a brief second before Shizune pulled back, flustered, finally releasing my softening manhood from its wonderful prison. Miki kindly grabbed a cloth from her nightstand and wiped Shizune's glasses off for her, then sat back on her bed contentedly as she started to clean herself up.
 
"Shit, seems like that was a tie," She said, chuckling. "Guess we'll have to go for round two!"