Muscle Up Milestone Moment

So on Friday a new client of mine comes over and we have a good session; some squat therapy, some mobility work, then I had him pound out a nice little WOD courtesy of CrossFit NorCal and their OnRamp program:

200 m run
21-15-9 of the following:
- Squat
- Pushup
- Pullup
200 m run

Afterwards, as he was cooling down, we were talking and making plans for our next session, I casually hung in a false grip from the high rings, and pulled off the most nonchalant muscleup - no thinking about it, no psyching myself out, just a fluid pullup from full extension on the bottom through the bottom to full extension at the top.
Un-*******-believable.

Post your "first time" (muscleup, kip, etc) stories to Comments.
Ian