[A new sensation... a disgusting NTR right before your eyes!] I had a suspicious girlfriend cheating on me... so I asked a trusted junior colleague to be the prankster and left the two of us alone to see if it was true. I nervously peeked in on what was going on, and an unexpected development occurred...! "I haven't done it with that guy, so maybe I've been building up..." Hinatako stared at me, seducing my junior. This is bad... I desperately tried to signal my junior to stop, but I was carried away and it escalated. She exposed her naked body, gave me a blowjob, and fucked me... I could only watch the hellish scene and ejaculated in a depressed state. The girlfriend I loved was just a slut... I was stupid to try something out for fun.