Neither of these tapes have any real orgy actoin in them, and to top it off, the sex is just barely above average most of the time.  Vol. 11 starts out with Lorrin Mick as a sex therapist counseling three couples about their sexual problems.  It ends up with the couples doing the nasty near each other, but the closest thing to an orgy is a momentary threeway.  At least in Vol. 12 all the couples are on the same bed, giving one false hope that an orgy might break out.  But, alas, such is not the case.  There is some partner swapping, but its more tag team fucking than an orgy.  Neither of these tapes are bad, just yawn city.