My girlfriend was taking a nap. Suddenly, I noticed her phone next to me. We've been dating for three years, and I'd never looked at her phone before. I just felt uneasy, and this was the first time I'd looked at it. The photo folder contained pictures from her graduation ceremony, photos from our dates, a folder full of memories…wait, what's this? Unrecognizable photos and videos. What's going on? She's sucking the penis of a stranger. When was this video filmed? It was recently filmed. The pure and gentle girlfriend I know isn't in the photos on her phone. There's a completely different, promiscuous woman there, instinctively and greedily devouring. What's going on? Another day, I secretly looked at her phone while she was asleep. The video had been updated. And she was being roughly treated in a M-play, looking very comfortable. I felt so resentful…but the sight of her being NTR'd aroused me, and I unconsciously started masturbating. Yes, I was excited by the sight of her being NTR'd; my brain and penis were racing. A perverted fetish awakened. She just found out. I tried to check her phone next to her, who was pretending to sleep, as usual, and that's when I got caught. Is this how our three years together ended...? No, it's not the same. This is the real beginning. She said she seemed to like me a lot, but couldn't forget the penis of her flirtatious lover. She just wanted to continue liking me. So, let me see what you look like when I NTR you... That's how our strange relationship began. I secretly watched her climax and go wild during NTR via live phone calls, then masturbated in frustration... That's the most comfortable thing ever!