I was drained of energy by my colleague all night

Kana is my junior, a beautiful and charming colleague. Kana often makes mistakes at work, and I frequently help her, just like today. After helping Kana finish her work, she invited me to have a drink. Perhaps because we drank a bit too much, Kana got so drunk that she didn't know anything anymore. Now that we've missed the last train, I had to take her back to the hotel.

Looking at my beautiful colleague lying on the bed right in front of me, I couldn't resist taking advantage of her. Just as I was in the act, Kana woke up, panicked and tried to stop me, but it was in vain. After it was over, I was about to apologize to Kana when she unexpectedly initiated things with me! Not only that, but throughout the night, Kana hardly let me rest for even a second! My stamina was drained, and I lost consciousness without realizing it...