Three months ago.
It happened when I stayed at a business hotel for a work trip.
I was staying in a single room at the very end of the hotel, and since it was often used by businessmen, I could hear the sound of an adult video playing very loudly from the next room.
At that time, I had broken up with my boyfriend about five months earlier and hadn't had sex since, so hearing that sound made me suddenly feel very aroused.
The person in the next room probably didn't know that a woman was staying next door and was watching the video.
When the sound stopped, I could hear the sound of someone taking a bath.
Due to the structure of the rooms, the bathroom in the next room was separated from my bathroom by just one wall.
I couldn't resist my arousal and started masturbating loudly enough for the person next door to hear.
Just knowing that there was a man right next door made me even more excited.
After I finished and was relaxing in the bath, the phone in my room rang.
I thought it was the front desk, but when I answered, it was an internal call from the next room.
"This is room ###. I heard everything earlier. Did it feel good?"
I was surprised because I never expected a call...
"Hearing those sounds made me unable to resist. Can you come to my room now? If you don't want to, we can continue over the phone."
I hung up without saying anything.
After thinking for a bit, I decided that since I would never see this person again, it would be okay, so I went to the next room in my yukata.
The person in the next room was a businessman in his 40s.
Just thinking that he had heard my masturbation sounds made me feel embarrassed and my heart race.
He seemed surprisingly kind, but when he said "Come in," I entered the room and saw that an adult video was still playing.
"Sit here," he said, and I was made to sit on the bed while he brought a chair in front of me and sat down.
Not knowing what was going on...
"Show me what you were doing in the bathroom earlier, like you let me hear."
When I instinctively said "No," he replied, "Then do as I say."
Since I was also very aroused, I nodded.
The first thing he told me was, "Open the front of your yukata."
I did as he said.
"They're big," he said.
Feeling a bit embarrassed, he then said, "Now touch yourself however you like."
Since I was extremely aroused, I followed his instructions, massaging my breasts with both hands and playing with my nipples with my index fingers.
When I couldn't hold back and let out a small moan, he asked, "Is this all you did by yourself earlier?"
As I pinched my nipples and moved my fingers faster, I started to feel it, and my nipples became more erect than usual.
Forgetting myself, I spread my legs a bit and started touching myself over my underwear. Because I was being watched, I was wetter than usual, and he said, "Oh... it's dripping down the side."
When I took off my underwear, the man seemed to get excited too, breathing heavily as he brought his face close to my private parts.
Being watched made me even more excited, so I inserted two fingers of my left hand and played with my clitoris with my right hand. My hips started to lift, and I let out a loud moan, then added a third finger.
Suddenly, the man took off his yukata and was left in his underwear.
I could see that the thing inside his underwear was very large, and just seeing it made me feel like I was going to come...
"I'm about to come...
so touch my nipples too," I asked.
And then I came.
After coming once and feeling exhausted, the man, breathing heavily, took off his underwear and said, "I've never seen such an erotic girl before," as he made me sit on his lap in a hugging position.
He then massaged my breasts and licked my nipples... and inserted his fingers into my private parts.
Unlike my own fingers, a man's fingers felt different, and I couldn't help but move my hips on my own.
"You get like this just from fingers... it's getting tighter..." he said.
As he inserted two, then three fingers.
Because of the previous masturbation, my private parts were very sensitive, and I couldn't hold back, moaning into his ear while desperately holding his thing.
The man, unable to resist after watching me masturbate, asked, "What position do you like?"
I got on all fours on the bed, spread my legs, and stuck out my butt.
The man, also very excited, asked, "Can I put it in like this? I won't come inside." Since I wanted him to put it in quickly, I said, "Yes... quickly..." while sticking out my butt even more...
And then he entered me.
It was hot and hard, and just a little movement felt very good.
In that position, he played with my nipples, and just that made me feel like I was going to come, but he pulled out once and then switched to missionary position.
The man seemed to be at his limit too, saying, "Ah... I'm about to come, so hold your breasts together..." and as he placed the tip of his thing on my nipples, he came.
Even now, I get wet when I remember it.