I (35M) have already written how my wife (33F) is now going out with her office colleague (30M). This is part 2 of that story. This happened before she officially started dating him. She herself told me about the events because she wanted to come out clean right from the beginning. Check out that one here: https://www.reddit.com/r/cuckoldstories2/comments/1hr2ls4/exciting_new_beginning_to_new_year_humiliation/

The weekend before Christmas, we threw a party at our place. We tried to keep it minimum by calling just our close friends, as our house is just a 2-bedroom flat and we didn't want it overcrowded or have the neighbours complaining. So we invited 8 more—2 couples, 1 guy from my work, and she invited 2 girls and 1 guy from her workplace.

Almost everyone had bought gifts. We started with a few icebreaker games to get them introduced and mingling with each other. My wife was busy arranging the table while I was interacting with the guests. The games soon got over, and everyone became busy talking in groups. She was talking with her officemates, while I was busy talking with another group. I excused myself to join their group for some time.

They were busy talking about events from work, laughing, and enjoying themselves. Since they were sitting at the dining table and talking, they were able to help themselves to the snacks kept there. I noticed that the guy from work, whenever he got up to get snacks or drinks, used this excuse to press against my wife or accidently touch her hand. Her other officemates too must have noticed, or they just ignored it.

While getting up to get some more sandwiches from the dish on the other side, he must have pushed against his glass of alcohol, and it ended up spliing all over my wife's evening dress. He immediately apologized to her, and she had to excuse herself to go in the bedroom to change. Soon she returned after changing, and I moved on to mix with another group.

We had already kept the dinner ready in case anyone wanted to leave early. One of the earliest to leave were the girls from her office. It was just the two of them now. She took him around to show the house, and they ended up talking on the balcony.

As soon as they were away from the group's eyes, he took that excuse to kiss her and fondle her breasts. When she had gone in to change, she had even removed her bra to put on the one he had gifted her this evening. As all the gifts were wrapped, it wasn't noticed, but he had brought in two, out of which one was this bra for my wife. He wanted to pull off her top but was scared of being caught by the rest. So while he fondled and kissed her, he guided her hand in his pants to feel his cock. That was the first time she had actually seen or felt his cock, and she could feel it was already thick and hard. She started rubbing it gently, and it didn't take much time for him to cum in his underwear. Luckily he had his handkerchief, so using that and some tissues in his pocket, he had to help wipe her hands and any traces of cum and adjeust their clothes.

After some time, they came back inside, and they joined the rest of the people in the hall. For the rest of the evening, he stuck beside my wife. I guess because he just knew her and the others not so much. Soon the party got over and they all left.

The next day when she went to work, her office colleague, the same guy, invited us back to his place for Christmas Eve dinner, but that I'll tell in another part.

You can DM if you have any questions.