-Chapters originally by EmiyaShirou-

Rin had always enjoyed the glimpses she got of Nozomi's creamy breasts, and being able to be so close to those bazongas would be heaven for the tomboyish first year, who had a rather unremarkable flat chest herself.

Rin felt her consciousness fade away for a moment before coming to in a place of darkness. Two big masses were pressed against Rin's body and she knew that she was Nozomi's bra, getting up close and personal with her senpai's boobies.

Right now, Nozomi seemed to be getting ready for PE... Light suddenly flooded Rin's eyes, but not from the sun; rather, it was harsh and artificial. She could see other girls undressing, including the sexy and cute Eli.

"Ah, Rin gets it, nya. Nozomi's class is having PE right now, nya. Which means I'll get lots of fun bouncing and watching the other girls get sweaty!"

Nozomi quickly changed into the school-mandated white t-shirt and bloomers, which blocked Rin's light once more but still kept her close and personal with Nozomi's boobies. At this distance, it was like she was motorboating them, so close to being able to lick her nipples, if only she had a tongue.

Today, Nozomi's PE class involved running on the track outside. Nozomi didn't normally like running since it made her boobs flop all over the place, but she'd put on a bit of weight recently and wanted to lose it before their next performance, so off running she went.

Rin was having the time of her life, enjoying Nozomi's mommy milkers rubbing and bouncing all over against her. "Having big boobies may not be fun, but being right next to them sure is!"

Nozomi felt a little off, like her bra was tighter than usual, but that was about to be the least of her concerns. Rin's wanted to test her new transformation abilities. In the case of Nozomi, her Rin bra was about to force her to...