There wasn't really anything wrong with the old gym. A year or two ago, the school had received a generous donation towards building a state-of-the-art gymnasium so that the students could participate in a greater diversity of activities. Ever since it had been built, none of the teachers had felt like using the old one, and it wasn't run-down enough to justify demolishing it. So for the time being, it was just an old abandoned building on campus. With running water. That seniors liked to fuck in.
Jennifer and Sarah made their way to the shower stalls. Nobody would be around, as most people weren't daring enough to try to sneak a session in during lunch.
They both sat on a bench outside of the shower, Jennifer's hands had returned to their task. "So, you said you were gonna help me? How?" Jennifer's right hand was kneading the corresponding nipple, sending waves of pleasure through her body. But it wasn't enough to cause her to cum, so she couldn't realize why exactly she felt so turned on.
"Well, I was reading a bit about stuff like this in psychology class, and I think you might be suppressing something. Usually it's relating to the stimuli, or in this case your breasts. I don't know if what I'm going to do will work, but do you mind if I try? It might be a little weird."
Jennifer thought to herself for a moment. What could she want to do that was 'weird'? "Sarah, I've cum three times since we got off the bus, several times in front of you in the last few minutes. I can assure you anything you try isn't weird." Sarah's face lit up crimson, "O-okay then. First let's get you cleaned up a little bit. If you're really cumming that much, then your panties must be pretty much ruined." Jennifer nodded as they began removing her pants. She had to peel her drenched panties off of her crotch. She came again, this time feeling the spurt of her juices drip down her legs. She could swear she saw Sarah lick her upper lip briefly, but she was more occupied with freeing her breasts from her oppressive hands.
Jennifer started trying to pull her top off so that she could start the shower. Sarah was right, she needed to get cleaned up. However, she couldn't get the midriff of the shirt over her gigantic breasts! She swore she had gotten it on fine, but taking it off seemed to be another struggle entirely.
Sarah started helping. Together they managed to pull the shirt off, but the force from getting her free sent Jennifer flying tits-first into the tile of the shower. Both her and Sarah started laughing at the scene as Sarah started the shower for Jennifer. Jennifer began lathering up, her left hand tending to its own business. In spite of the self-climaxes, Jennifer felt frustratingly horny. Like she needed something inside of her. As her left hand increased its intensity, her right hand got to work "cleaning" her dripping cunt. As she was about to work her slit, she felt a second pair of silky arms slip around her waist, and a pair of breasts press against her back. Without even looking, she knew it was Sarah.
As she turned around, she saw Sarah's face alight with feelings Jennifer hadn't realized her friend had. Sure, there was situational lust, but she could tell that these feelings had been deeply held secret from her over the years they had been friends. Her invitation this morning had been all that Sarah needed to act on.
They began caressing each-others bodies, kissing all the right places. As Jennifer began to rub Sarah's clit, Sarah began suckling on Jennifer's tit. To Jennifer, this felt better than any of the stimulation she had given herself throughout the day combined. A dirty and wet moan escaped Jennifer's lips as she could feel drips of milk permeate her nipples. Sarah kept suckling, and before long Jennifer was a quivering mess of cum and milk on the floor, being sprayed by a light stream of water. Sarah continued drinking both nozzles to her heart's content.
As they finished cleaning and getting dressed, they headed back to class. Jennifer realized there was something different about her friend, but she couldn't quite figure out what. Had her breasts always been that big? 'Yeah, she went into puberty around the same time as me, didn't she?' she remembered the slumber parties where they'd compare their sizes and try on their mothers bras.
As they reached the final hallway they shared before parting ways for class, they gave each-other a hug and Jennifer thanked Sarah for her help. "Any time guuuuurl!" Sarah said as she turned around and walked to class. Jennifer turned her own way and continued to class. But neither of them had realized that they each had a hand gently caressing their breasts the entire time they'd been walking across the courtyard.