Normally

"Im so sorry machi normally i use the shower after I train and aunt mito usually takes on in the morning so it normally empty so i didnt think about it." Gon rambled.

Stand up from the tub machi covered herself with her hands and started to walk towards gon. Gon expected many things to happen but he was not ready for her to leave the shower.

Seeing her walk past him he look back and saw her butt jiggle a little with her each step.

Overwelmed by his newly budding instinct he spoke stopping her.

"Its normal to help me to a wash your students back and I am injured."

She sighed and grabbed a towel covering herself with it before back walking in. Seeing her do it he walked to the stoll and sat down, his long soft penis touching the tiles.

She came up behind him "Im just helping you wash your back right?"

"Yea i need help washing up since the training today was so hard."

As she started to scrub his back he had time to think about what happened. 'Whats going on? Why do I keep saying things on accident?'

Suddenly a thought struck him remebering what machi had said before "training" him. 'Maybe it has to do with my specialist nen. She said it would come naturally. Should i test it?'

"Hey teacher can you wash my front too?" Gon ask trying to test the water.

"No you can do that by yourself." She answered adding more pressure to his back hurting him.

'Huh was i just imagining it?' He was confused why that didnt work. "Hey teacher"

"Im not washing your front"

"No I was just wondering does nen have triggers?"

Surprised by his question she stopped scrubbing "yes some nen techniques need you to fulfill certain condition like touching the target others need certain information some need to say a word...."

As she continued gon came to a realization, something about his words caused it. But what word caused it. 'Normally aunt mito... wait is normal the trigger i did use all the other times. Only one to test it.'

"Hey teacher" he spoke up interrupting her.

"What now?" She ask annoyed that she was interrupted.

"It normals to wash my front right?" He ask after hesitating for a moment. Suddenly he heard suffling then suddenly he saw a head of pink hair

She was now kneeling in front of him only wearing a towel. Looking down he saw the top of her clevage. The he felt the rag touch his chest, and his big member start to rise.