Nina Hartley's Guide To The Perfect Orgy 2007 | Adam & Eve | Runtime: 2h 50min | Series: Ernest Greene
Nina Hartley's Guide To Double Penetration 2004 | Adam & Eve | Runtime: 1h 10min | Series: Nina Hartley
Nina Knows Best Of Series 7: Anal, Double Penetration And Strap-Ons 2015 | In The Mood | Runtime: Unknown | Series: Nina Knows! Best Of