Nina Hartley's Guide To Better Fellatio 1994 | Adam & Eve | Runtime: 1h 3min | Series: Nina Hartley Guides
Nina Hartley's Advanced Guide To Oral Sex 1998 | Adam & Eve | Runtime: 1h 28min | Series: Nina Hartley Guides
Nina Hartley's Guide To Stripping For Your Partner 2007 | Adam & Eve | Runtime: 1h 16min | Series: Ernest Greene