Finally fulfilling online lust in an office stairwell [MF] [Cheating] [Long]

For upfront description purposes, at the time of this story I’m 27 years old, and I am 5’9”, 165lbs, white, brown hair, blue eyes, relatively fit (both run and lift regularly), and am a clean-cut type. Kelly is ~26 years old, 5’2”, white, with burnt orange red hair and freckles. She is actually kinda built from going to the gym and as such has a great ass and thighs. Her tits were fantastic (34C if I had to guess) with half-dollar sized flat nipples.