Yes - they were partial charters by a private travel agency. The first one was on Carnival which said they had agreed to do two, but after the first one they canceled the seocnd one.
Why? They never said, but it was discovered there were far more "ladies" onboard than there were "cubs" - and so the ladies were not too pleased. Furthermore, we don't know but we suspect the cruise line got a lot of complaints about guys and gals hitting on other people on the cruise who were not part of the "cougar cruise" group.