Marina held the underwear she had just taken off, feeling a cool sensation under her skirt in that private area, as if something was about to leak out. “How could this be…” she muttered to herself. It was her first time masturbating, and she suddenly felt a strange sensation in her body, her legs instinctively clamping together.

She picked up her underwear and looked at it; the crotch area was wet. “Did I pee? How embarrassing! The teacher is coming soon, I need to change quickly… Where should I put it?” She usually left her underwear in the bathroom and washed it casually while showering. This was a completely new situation for her, and she didn’t know where to put the panties in her hand.

“Naina, are you in your room?” The teacher’s voice suddenly came from outside the room. Marina hurriedly turned around and looked at the door, putting the hand holding the underwear behind her back. Seeing that the door was closed, she breathed a sigh of relief and hurriedly hid the underwear. Just as she was about to get some clean underwear to wear, she suddenly remembered that there were still photos of the teacher on the computer, so she hurriedly closed the open files.

“Bang! Bang bang!” A knock sounded on the door, and the teacher’s voice came from outside: “Nai-chan, are you in your room?”

“T-Teacher, I’m here!” Marina replied somewhat flusteredly. She glanced at the computer screen, and after confirming that there was nothing wrong with the computer, she went to open the door. Not having had time to put on her new underwear, she covered her skirt with her hands, trying to suppress her shyness, and invited Song Ning into the room, “Teacher…please come in quickly!”

“I ran into Ellie downstairs. She rushed out and told me you were in the room, so I went upstairs by myself.” When she heard Song Ning’s explanation, she lowered her head shyly, not daring to look up. But her cheeks, earlobes, and neck were burning hot from shyness and nervousness, making her look rosy and charming.

He invited Song Ning into the room and said, “Aili joined the school’s idol club, saying she wants to become an idol…”

The two stood facing each other, almost touching. Marina didn’t dare to look up, but her gaze inevitably fell on her teacher’s lower body. “It’s… bulging up. Is that Daddy’s inside?” she couldn’t help but wonder, her mind wandering. “Are you planning to have Teacher stand here forever? Well, Teacher is happy to stand here with beautiful Na-chan forever!”

“Huh!” Song Ning’s reminder brought Marina back to her senses. “I…I’m sorry, I was rude. Dad…Teacher, please sit down.” Marina almost shouted it out, but thankfully she swallowed the word “Dad” back in time and made room for him to sit down on the cushion on the ground.

To Marina’s heart pound, the teacher sat on her bed, propping himself up with one hand on the side of the pillow. “So, it’s just Marina-chan at home now?”

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“…” Marina stared blankly at the teacher’s hand, her mind a complete blank, because her underwear, which she had just taken off, was hidden under her pillow.

“Nana-chan??”

Only when Song Ning called out to her again did Marina come back to her senses.

“W-what’s wrong, teacher?” She was extremely nervous, unable to imagine what would happen if the teacher found out, yet she also felt a faint sense of anticipation. What would happen if the teacher found out?

“Your teacher is asking you, isn’t your mother home either?”

When Marina heard that the teacher was asking about her mother, Sawamiya Naho, instead of the underwear under the pillow, she felt relieved but also a little disappointed. She looked up at Song Ning’s handsome and warm face, his deep eyes, and his smiling lips. The vague impressions of her childhood became a little clearer. Her father must have looked like this.

The girl couldn’t help but flinch for a moment, shaking her head slightly as she replied, “Oh, Mom went out at noon to meet a friend, and she hasn’t come back yet…”

“Nana-chan, have you been doing your homework diligently while you’re home alone? Have you been naughty?”

Hearing Song Ning ask this, Marina’s heart jumped again. Had her father discovered something?

Feeling guilty, she lowered her head again, no longer daring to look up and stare, her gaze once more falling on Song Ning’s prominent groin.

“It seems to be bulging even more. Is it because I’m sitting? Or has it gotten bigger?” she wondered to herself. A tingling sensation came from between her legs, making her secretly wiggle her hips.

“Nai-chan, the teacher is asking if you’ve been studying diligently.” Song Ning asked again.

“Hmm? Oh! Yes…yes, I recorded all of the teacher’s tutoring yesterday and have been listening to it all afternoon…” Marina squeezed her thighs together even tighter. This afternoon, she had been reviewing Song Ning’s recording from yesterday, and somehow, she became aroused while listening, to the point that she inexplicably started masturbating.