Nina Hartley's Guide To Hot Talk 2015 | Adam & Eve | Runtime: 2h 23min | Series: Nina Hartley's Guide
Nina Hartley's Guide To G-Spot Sex 2005 | Adam & Eve | Runtime: 1h 16min | Series: Nina Hartley's Guide
Tristan Taormino's Guide To Bondage For Couples 2012 | Adam & Eve | Runtime: 3h 1min | Series: Tristan Taormino
Nina Hartley's Advanced Guide To Anal Sex For Men And Women 2007 | Adam & Eve | Runtime: 1h 43min | Series: Nina Hartley's Guide