Concetta and Yau Nam

Concetta is a high level, black belt practioner of the Yau Nam. Yau Nam is a little-known sexual and martial art. This is an account of one morning in her life - she first shags three men senselss, then moves on to the Yau Nam dojo and takes on two Yau Nam masters.  The morning is completed when she takes on the dojo instructor, and leaves him physically and sexually drained.