Nina Hartley's Guide To Anal Sex 1995 | Adam & Eve | Runtime: 1h 17min | Series: Nina Hartley's Guide
Nina Hartley's Guide To Female Ejaculation 2005 | Adam & Eve | Runtime: 1h 24min | Series: Nina Hartley's Guide
Nina Hartley's Guide To The Perfect Orgy 2007 | Adam & Eve | Runtime: 2h 50min | Series: Ernest Greene
Nina Hartley's Guide To Porn Stars Sex Secrets 2006 | Adam & Eve | Runtime: 1h 17min | Series: Nina Hartley's Guide
Nina Hartley's Guide To Great Sex During Pregnancy 2008 | Adam & Eve | Runtime: 1h 25min | Series: Ernest Greene