Just 5 millimeters away from seeing my senior's girlfriend's huge breasts! After the fireworks festival, the seniors came to my place in yukata without bras. Since the senior got drunk and fell asleep early, it left an awkward situation for the two of us to drink alone... I couldn't help but stare at her cleavage, and she noticed my gaze (with a flushed face and looking up at me). Slightly drunk, my senior's girlfriend started to tempt me, engaging in NTR sex right in front of her boyfriend (my senior)!