My house is close to the office, so my senior female co-workers who got drunk and missed the last train often come to stay over! I'm timid, so I'm treated like a pet at work and they don't see me as a man, so they sleep in front of me! But her flashy underwear, which I think are her lucky pants, is showing through her white pants suit, and I can't help but get an erection! When I secretly stuck my erect cock in her overly sexy ass, the senior female co-worker, who was actually awake, got horny! She saw me as a man and gently stroked my cock!