What movie was playing on Showtime in the Santa Ana or Irvine, California area on
either May 27th, 28th, or 29th between 1AM-6AM that was kinda smutty
and dealt with a virtual reality sex program called Virtucon?

drnixxx,

The list of all movies shown on Showtime can be accessed from the
Showtime website http://showtimeonline.com  From there, I found that
on May 28th at 4:30am, the movie "Virtual Vegas" was showing.  A
capsule description of this movie is found at
http://www.showtimeonline.com/movies/%20movies_product.cfm?titleid=114042

Here is a brief excerpt:

TV RATING: TVMA-VS
SHOWTIME ADVISORIES: Nudity, Strong Sexual Content, Violence, Adult
Themes
STEREO / CCAP / ESP 
1 h 24 m 
 
A brilliant software designer displays his new virtual reality program
at a show in Las Vegas with the help of his sexy assistant, a schemer
who's plotting to steal her boss's ideas and make a killing. This
erotic fantasy sequel to "Virtual Girl" stars Jason Schnuit, Susan
Featherly and Amber Newman

Google search terms used:
showtime channel program listings santa ana
"Virtual Vegas" movie