"Now", Professor Kao instructed you via phone app, "make yourself shirtless."
You groaned. "Okay. I see where this is going." You paused, still Racer on your shoulders, and rotated your chair, facing away from the PC. With shaky hands, you pulled up your shirt, just high enough for your breasts being free. "And now I ...?"
"... take the Cube of the BeastMon you want to boost, and press button to nipple", he said, slightly disappointed.
As for you, you were relieved. Dodging really embarrassing bullets here! Enthusiastically you grabbed after the Cube. "Does she have to be inside?"
"No, the power will transfer either way. Use your Pager to observe it in more Detail."
"Okay!" Easy. That was easy! You wrestled a little with your shirt, aimed your pager at slumbering Annie and docked on. "So here goes noth- Ungh!" An electrical jolt shot through you. Not painful, in fact it felt quite ... pleasant? Against your will you moaned. Also, a question crossed your brain. There were obviously male Trainers. How did they ...?
"Uh, Professor?"
"Yes?"
"The ... Pager shows no progress by Annie. I mean, Heatguana."
"So? Press harder, turn it maybe a little clockwise?"
"No itīs working at least somehow, I feel getting younger, but ..."
"So? - Oh, I see", came an answer from the PC. At the same time, you felt a growing weight on your shoulders, Racerīs little feet coming into your field of view.
"Oh no." By that, her growing thigh's tapped your cheeks.
"Uuuuh, so warm!"
You pulled the Cube away, but felt the weight still increasing. You stumbled, lifting Racer from your shoulders and sitting her, virtually throwing her on the bed right next to Annie. Then you stepped back, your breasts half exposed.
Racer was squirming, and growing. As a human, she would have jumped from five to fifteen. As a BeastMon, she just evolved. Her cute curly brunette hair grew longer, gaining mass and styling itself into a braid, with a tangle of feathers at the tip. The scuffed looking coat she wore transformed to smooth leather, becoming similar to a pilotīs uniform, with a pattern of feathers all over. It was, of course, a little scimpier. Her cleavage popped free as she evolved further, a just generated button went flying. You ducked.
"Whoops ..." Racer looked at you, wide-eyed. "I didnīt mean to do that, I swear! It just - uuuh ..." The strand of hair which lengthened at her forehead just curled itself up, grew even longer and gained a pink colour. It stood upright, stopping itīs growth at roughly arm lenght. At last, aviator googles formed itself, resting on her collarbone like a scarf.
You stared at your evolved birdie-girl, as a slowly rising crying called for attention. All the moving had woken up the sleeping baby, and maybe Annie understood way to good what just happened, or maybe she was just grumpy. Either way, she began crying.