Karen is my subordinate, a smart, beautiful, cute, and extremely innocent girl. Today Karen and I were tasked with negotiating with a client. Due to my carelessness, I almost ruined the deal, but fortunately Karen was very sharp and managed to secure the contract. Afterwards, we celebrated by going out to eat. I had a bit too much to drink and missed the last train, and my phone ran out of battery. Karen suggested that I come to her place to charge my phone. Thinking that it would be fine since we were colleagues, I agreed. When we arrived at her place, Karen put on a loose off-shoulder top, causing her breasts to constantly appear and disappear in front of me. Since Karen usually wears a suit, I never expected her breasts to be so big and beautiful! Knowing that I was peeking, Karen confessed her feelings for me. It turns out she had liked me for a long time but was too shy to say anything. Unable to resist Karen's seductive beauty, we ended up having passionate sex that night, with Karen letting me ejaculate inside her wet pussy multiple times. Despite feeling guilty towards my girlfriend, Karen brought me a sense of pleasure that I had never experienced before...