Tales of a Body Swapper - The Training Regime

"Tsunade-sama... you called?" I asked her.

I was still in Irina Jelavić's body, and she called me to meet her at the park one afternoon.

"Yes, I did," replied Tsunade. She had inside her backpack dozens of 5 to 10 pound weights. Apparently, Irina had a training regime with Tsunade... for some reason.

"Now, Eddy... I want you to use that remote you have to switch bodies with me. I want to try an experiment. But let's do it inside the unisex restroom at the center of the park.

"What?" I replied, annoyed. I was only in her body for three days. Sure, she had a ton of work, but it could be better if I served the full term, which was one week each swap.

But I gave in easily, and pushed the red button on the remote, and we switched bodies with each other. I guarantee that some people were suspicious of us entering together.

When I opened my eyes, I felt a sudden surge of energy flow through me. I was surprised how... powerful I felt as Tsunade. Then again, she used to be an experienced ninja back then, so it's kind of unsurprising. But these massive lumps of hers... they're so uncomfortable - especially with my nipples poking at her clothing - and my back hurts because of them. No wonder she doesn't put on a bra for them... Jesus.

Anyway, Tsunade, now in Irina's body, said, "All right! I'm Irina Jelavić, the Serbian spy. Now, let me test her out by lifting these 30-pound weights..."

She seemed to actually struggle with them, despite me lifting 50-pound boxes in her body. Maybe it was due to her new perspective...? Who knows.

"So," I asked Tsunade, while I was carrying a 150-pound box full of weights. My arms started to hurt shortly after, so I put it down. "What do we do, now that we're in each other's bodies?"

"What did I just tell you minutes ago?" she replied, annoyed. "It's for an experiment that tests how different bodies can be in terms of strength and endurance."

Trying not to stay in her body for too long, I then said, "Why would you do that, if you know your body'll probably outclass the majority of humans in the real world? Wouldn't you prefer to be in your own body?"

"I do - but it's for an experiment."

"Ah, jeez."

One week had passed, and I was preparing to go to the beach after a long week for exercise...

...but why did she specifically tell me to wear this?!

This was absolutely ridiculous. It wasn't even fit for the beach. Ugh.

When Tsunade and me arrived at the beach, we met up with some of her friends, including Palutena and... Princess Zelda? And she was in a bikini?! How... unique of her.

Then I noticed something - she switched with Rias Gregory, so no wonder she's dressed like this. Darn.

Tsunade introduced me and told them everything about my situation.

"Oh, wow." Palutena was surprisingly nonchalant about it. "Are you doing okay being in different bodies every week?"

"Yeah. I've gotten used to it."

Meanwhile, "Zelda" said, "Oh, really~? Gee, must be interesting being in so many beautiful women... I wish I had your power~."

Palutena replied to me, "I think you know why she's acting the way she is."

"Yea-"

Rias then snatched the remote from my hand and pressed the red button at me and Palutena.

*swiiiizzz!*

Again?! Ugh, seriously? I was in Palutena's body for this week, as well. My luck is often unfortunate. Damnit.

"Now you're the Goddess of Light," replied Rias. "Have fun taking her responsibilities now."

...why?!