Karen is my successor, a smart, beautiful, lovely, and extremely naive girl. Today, Karen and I were assigned to negotiate with a client. Due to my negligence, I almost messed up, but luckily Karen was very sharp and managed to secure the contract. After that, we celebrated together. I had too much to drink and missed the last train, my phone ran out of battery. Karen suggested that I go to her place to charge my phone. Thinking that it wouldn't hurt to do so, I agreed. When we arrived at her place, Karen changed into a loose, off-shoulder top, which constantly revealed her breasts in front of me. Since Karen usually wears a suit, I didn't expect her breasts to be so big and beautiful! Knowing that I was peeking, Karen confessed her feelings to me. It turns out she had liked me for a long time but was too afraid to confess. Unable to resist Karen's seductive beauty, we ended up having sex that night, and Karen let me ejaculate inside her over and over again. Despite feeling guilty towards my girlfriend, Karen brought me a sense of pleasure that I had never experienced before...