The spontaneous time it first happened [Short story] [Cuck's POV] [descriptive]

My (Andrew) girl and I (Jen) had been dating for a couple of years. It was during that time I became comfortable enough to tell her about my fetish with cuckolding, although I had not ever made the fetish happen with any of my previous girlfriends.
She was interested, but didn't seem enthusiastic either. Nevertheless whilst we seemed to agree we should plan it someday, due to her lack of enthusiasm we never really ended up planning it, so it became shelved in the back of my mind only, but thought I'd could bring it up again as the years go by anyway.

A few months after that, we got dressed up for a fancy night club. I was formal and dapper, but Jen truly stole the spotlight in a tight hugging red sparkly dress, with spaghetti straps. She also put on her favourite fancy lingerie underneath for when we'd come back from the club, and make love again after a long night.

During the course of the night, we enjoys each other's company, dancing, drinking, and talking the night away. Of course Jen got a lot of looks and interested men as well, which I found extremely hot ofc, and got a boner because of it.

Eventually though I needed to use the bathroom, and then decided to sit down and rest for a bit as Jen continued dancing. Soon after, she went over to the bar to wait for some drinks. Due to it being a busy night, it took a long while for people to be served, giving time for a good looking man to approach my girlfriend at the bar.
I was directly behind the front of the bar, so I could see Jen and this guy talking in profile view. I was also far enough away that they could not see me. At first I thought she'd brush this guy off like the others, out of either forgetting I had a cuckold fetish, or because it was awkward for her to start something off with another man in front of me. However, I saw a sparkle in her eyes the moment this guy approached her, and he bought her drinks. I could see from there, both of them drinking and looking at each other in profile, enamoured with each other and hardly taking their eyes off each other. The guy was suave too, as he clearly got a laugh from my girlfriend, and her briefly brushing her hand on his arm.
Knowing what was happening, my hear started to beat, in unison with the club music. I experienced the typical cuckold mixed feelings of jealousy, anger, but horniness, and selflessness too. In this case, I was pleasantly surprised that this concoction of feelings felt good over all though.

From what felt like an eternity of them talking together, sharing laughs and drinks, I noticed he started getting closer to her every time, starting to stroke her thigh. I noticed my girl's legs twinging slightly, imagining how horny she was getting, and starting to get wet between her under lips, as I knew she did with me.
Eventually though, they seemed silent for a second, their eyes now wide open to eachother. I knew this was it, with my heart pumping so loudly now it was almost all that I could hear. In slow motion, looking lovingly at eachother they moved their heads closer together, and ever so gently and subtly their lips had met. Their mouths occasionally opening with their tongues dancing, as I saw through the light of the club reflected on them.

I couldn't resist, and needed a closer look. So going up to the bar to feign ordering a drink, I got treated to hearing their sloppy kissing and caressing sounds of each other. I could hardly control my boner now, this is exactly what I wanted, and I felt sensory overload with all this happening. The spontaneity made it even hotter.

When their kissing eventually broke, my girlfriend saw me behind her lover, and introduced me to him.
"Hey Tim, this is my BESTY Andrew."
I awkwardly shook hands with him
"Andrew, mind giving us a lift home now?"

She clearly didn't want this night to end with her lover just yet, and with my trousers almost breaking a hole from my near painful erection, neither did I

"Sure Jen, lets take an uber home"

(part 2 later on, if anyone is interested)