Quickly after I had explored Four Island, I decided to head over to Three Island, as I had heard numerous rumours around Four Island that a new battle institute had opened up around Mount Ember, and was fairly interested in it. As I hopped off my Blastoise and looked up at the mountain in-front of me, I could easily see that a small palace had been recently built near the plateau of it. Now getting pumped for the possibility of a battle, I went to go enter the cave system that run up and around the mountain, I heard a voice behind me.
"Oh sorry, the Arena's closed for today. I apologise for any inconvenience." It said.
I pivoted towards the voice and saw a youngish girl who couldn't have been more then a year younger then me, quickly approaching me. Once she stopped in-front of me she quickly caught her breath before continuing with.
"I wanted to take a break today. And seeing as there hasn't been too many challengers I'd figured it'd be fine."
I was a bit taken aback at this, but then I came to the conclusion that she was pretty strong to run a facility.
"You run this?" I asked, pointing to the palace perched upon Mount Ember.
"Yeah, the name's Greta. Or as most people know me as, the Battle Arena Brain." She said, quickly kicking her leg high over her head. Even though she was wearing fairly loose fitting light blue pants, I could easily notice that her thighs were extremely toned. Greta jumped as she lowered her leg back down, her subtle breasts bouncing as she did so.
She finished by bowing and I decided on replying with introducing myself as I wore a shocked expression on my face.
Greta finished off her outfit by wearing a dark purple one-piece swimsuit, as well as a lighter purple converse-like shoes. She wore her blonde hair in a short bob, almost like it was framing her head.
"I'll be happy to hang, and you could even stay around until tomorrow." Greta said, going to sit down in the sand.
"Yeah, I think I might hang around." I replied, quickly letting my mind run of on it's own, dirty thoughts.
I sat down next to Greta, placing my bag beside me. She then quickly flicked her shoes off before standing up, and bending over, seemingly in my direction to lower her pants. I couldn't help but stare at her rear. The back of her swimsuit was up riding in her ass crack, giving me an extremely good view of her amble toned cheeks. She straightened up and tugged on her swimsuit, returning it to its original position, before turning around.
"You wanna go for a swim?" She asked, extending an arm in my direction.
"Uh, sorry. I didn't bring a swimsuit." I replied.
"Who said you needed a swimsuit, I'm sure you could think of something." She replied, seemingly winking at me.
At first I decided on going in topless, seeing as I wasn't wearing a bra today, but quickly decided on just wearing my singlet.
I quickly stripped down to just my panties and singlet, before standing up.
"You know, you could have gone further. We are both girls here." She replied, a hint of suggestion in her words.
I reconsidered, but I realised that either way Greta was going to end up seeing my breasts, either through a soaked shirt or just because of my willingness. I followed her into the cool water, enjoying the feel of the liquid on me. It had been an age and a half since I had actually gone swimming. Surfing on a Pokemon was one thing, but swimming was something else altogether.

I had noticed that Greta had taken to swimming laps between the rocks that alined the edges of the water, as I just decided on laying on my back, floating along. I grew close to napping, but as my eyelids began to close, I felt Greta come up to me and even rest her arms up on my stomach.
"Hows it hanging?" She said.
"Just fine. Can't believe I haven't gone swimming in ages." I answered, turning my head as best I could in her direction.
"I can see why you didn't take off your shirt." She said, gently brushing her digits along my breast.
"Yeah, sometimes it just feels better to go without, you know?" I replied, getting back in a position so I could tread the water.
"I know exactly how you feel." She replied, seemingly getting lost in my eyes.
I didn't know how to respond, so I just let to conversion fall into silence. We hang there for a little bit, Greta seemingly getting closer to me. Eventually she swam behind me and cupped both my breasts with her hands. She began to grope them, as she leaned in and whispered.
"I can't wait any longer to have fun with these." seductively. I was a little bit shocked at her current movements, but at the same time, I could say I didn't enjoy it. I released a soft moan, as I tried to keep on treading the water. She continued on, her fingers slowly focusing on my nipples. When I started to moan more passionately, she moved her hands up my floaty shirt and back onto my breasts. I let her grope them for a little bit, before tapping on her shoulders.
"I don't… aaaa…. think… I can… keep aaaaaahn-float any longer." I moaned, getting pretty close to orgasm.
Greta then began swimming backwards towards the shore line, still groping me as she went. I was able to touch the sand below me by the time I came. After I recovered somewhat, we walked out of the water, with me quickly sitting down to fully recover. Greta continued on until she reached the rock wall. She sat down and began to lean against it as she lowered the straps of her swimsuit down to her elbows with one hand. Her free hand, was slowly moving around her thigh, gently groping it as she went. Now with her breasts exposed, she lowered a hand to her crotch as she spread her legs open.
"Playing with your fun bags has made me incredibly aroused." She said seductively, as she began to trace the length of her slit with two digits. As she went, she began to press down on her crotch, allowing the fabric of the swimsuit to cling directly and totally to her skin. She also began to pinch and tweaks nipple with her other hand. She quickly came, her eyelids hang low as she tilted her head back and climaxed. She quickly recovered and came up to me.
"How about we head somewhere more private?" She asked, somewhat panting through her words.
We quickly grabbed our things, and I even offered to place Greta's clothes in my bag before we walked into the cave, walking in after we slipped into our shoes. Even as we continued on, Greta hadn't moved her swimsuit back up.

As I expected, the wooden palace that was the Battle Arena was empty, allowing us to slip in, somewhat naked. Inside Greta led me into a room she had dubbed the "Playroom". As she closed the sliding door behind us, I looked around the large room and noticed the room was filled with various phallic objects and other… interesting sex toys. Near the other side of the room, closer to the moveable window was a medium sized futon, adorned with a greenish cover, with a circular pattern in the middle. I placed my bag near the door as the half naked trainer led me up to a triangular prism made mostly out of wood, with the top edge being covered in a soft material.
"This, is my personal favourite." Greta said seductively, before hopping up on top of the object.
She then steadied herself with her hands, before slowly grinding her hips along the edge of the "table". I decided to try the new experience and I hopped on the other side, facing the Arena Owner. We slid closer, and she began to slowly raise her hands up to my breasts, slowly groping them. I leaned in for a kiss, and we held it for a long while, ever so slowly working towards another orgasm together, grinding along the prism. We eventually broke the kiss, letting the room fill up with our heavy moaning. Greta then remove my shirt, before lowering her swimsuit even further. We quickly considered continuing on, but we soon decided that getting completely naked would be a much better idea. Now nude, we hopped back on and continued on, quickly climaxing together, letting our love juices flow out on the softer material. I gestured for Greta to lean back as far as she could, before leaning over, before tracing my tongue around her slick crotch. She then placed a hand on my head, steadying herself with her other, as I continued to trace around her slit. It didn't take her as long to reach a climax, because of her recent orgasm, but as I felt like she was nearing the edge, I stopped tracing my tongue, and began pressing it down, slowly making its way to inserting it. It only took a few thrusts for her to be forced over the edge, the taste a smoky meat quickly landing on my tongue. I eased up, to allow her to recover, and when she did, she hopped off and retrieved one of the various phallic shaped toys. She then gestured for me to slide up more, allowing her to hop on beside me. She then slowly lowered me down again, my chest spilling over the edges of the "table". I began to feel Greta beginning to toy around with my anus, before gently inserting the toy in, inch by inch. She continued thrusting, slowly increasing the pace. As she drew on, the positioning of my crotch on the "table" quickly got to me, speeding up the process a little bit. Also being quite aroused didn't help. Soon enough, with a final thrust, I came, almost losing my balance on the table.

Greta allowed me to recover, before gently leading me over to the futon. She then started to lick around my crotch, picking up my love juices. She continued on for what felt like the entire length of the afternoon, causing me to reach climax a few times. Greta herself had also orgasmed a few times, seeing as she had lowered her hand down to her own crotch. Eventually we stopped, panting heavily, covered in sweat. Greta then reached up and began a long passionate kiss, slowly drifting off to sleep as we continued.