A Night of Unexpected Encounters

Last weekend's story.
I live in a 2-bedroom apartment with my 29-year-old husband, and I'm a 25-year-old housewife.
Currently, my husband is serious about his work but loves online games, and it was discovered that he spent about $2,000 on them in the past three months!
My love for him has cooled, and I'm on the verge of deciding whether to leave him or not.

In such a situation, last week, there was a New Year's party at my husband's workplace, and for some reason, I was made to attend.
Some people brought their wives, but I wasn't very entertained, so I was relaxing by myself.
Everyone was having a great time, and my husband was quite drunk. After being dragged to the third party, I was wondering what to do with my passed-out husband when his colleague, Mr. Smith, offered to take him home.
Mr. Smith lives in a nearby town, and since the last train had already left, he ended up staying over. However, besides the living room, one room is the bedroom, and the other is a small sitting room.

So, I had no choice but to push the table to the side and somehow managed to lay out a futon.

After that, I took a shower, and when I came out, the two of them were taking beers out of the fridge and making noise. I thought, "Oh no," but I was invited to join them.
As I watched TV and observed the two, Mr. Smith seemed to get sleepy and lay down on the futon next to the table, talking to my husband.
At that time, the futon and the table were perfectly aligned, and I was sitting at the head of Mr. Smith.
Eventually, my husband fell asleep, and I told him to sleep in the bedroom next door, but he wouldn't wake up!
Mr. Smith seemed to be asleep too.
Somehow, I also got sleepy and ended up crawling under the table and falling asleep.

How much time had passed?
I woke up feeling someone's breath on my face, and the distance between Mr. Smith's face and mine was about 10 centimeters, with his breath on my face...
My husband was snoring loudly.
Mr. Smith wasn't really my type, but maybe because I had been drinking, my heart was racing.
Gradually, I moved my face closer, and when our lips were about 1 centimeter apart, I couldn't resist wanting to kiss him, thinking, "I can just pretend I mistook him for my husband!"
Under the table, I slowly lifted the hem of my dress, moving my body closer to Mr. Smith. The table legs were in the way, but I managed to slip my leg under Mr. Smith's futon, and when our bare skin touched, he placed his hand on my leg, saying, "Hmm!"
It was probably a coincidence, but for some reason, I got really excited, and my mind went crazy. I kissed Mr. Smith, occasionally moving my tongue to see his reaction.
We were kissing, embracing each other across the table legs.
Our legs were intertwined.

(If I mistook him for my husband, wouldn't I go further?)

Unable to stop my selfish thoughts, I finally slipped my hand into Mr. Smith's underwear, and he was already awake, fully aroused, and the tip was wet.
I thought, "Whatever," and crawled in to lick the tip. The smell was strong, probably because he hadn't bathed, but the excitement outweighed it.

As I started a full-blown oral session, he pulled my lower body closer, removed my underwear, and I cooperated, crawling into Mr. Smith's futon, thinking, "Was he awake all along?" We ended up in a complete 69 position.

(Doing this next to my husband, who's snoring loudly!)

Thinking "Serves you right!" to my husband, I ran my tongue over the back of Mr. Smith's scrotum, wondering if it was dirty, but I licked around his anus while looking at my husband's face.

(I've never done this to my husband, but I'm doing something crazy with his colleague I just met...)

Unable to calm my excitement, I licked around his anus while giving him a handjob.
Maybe it was to spite my husband, but I've never been this excited before!
I climaxed multiple times just from the 69.
In the end, I let him enter me without protection!

Embraced next to my husband, when Mr. Smith was about to finish, I wrapped my legs around him to make him finish inside. Mr. Smith was quite flustered, but I felt like "Serves you right!" to my husband.

After that, Mr. Smith, being in sales, occasionally drops by to satisfy his desires with me.
Yesterday afternoon, while I was giving Mr. Smith oral, I called my husband, and when he asked, "Are you eating something?" I said, "Yeah, ice cream!" and got really excited. I told him, "I'm going to be late because I'm having a girls' night out with friends!" and went to a hotel with Mr. Smith after he finished work.

The affair that started as a way to spite my husband has somehow become something I'm really into.