What is "GND" sex? It's girl-next-door sex. What that means is sex with a girl who is not a porn star of several hundred scenes who moves and fucks on auto-pilot, with mechanical body language and redundant comments while she's riding the cock. In other words, a sex-robot. Christy Marks, 2010's 3rd Runner-Up for Model of the Year, is one of the best at GND sex. Of course with Christy, it's sex with someone who can twist her limbs and body into positions that rival a yoga master. The pile-driver position for Christy is like a warm-up. Few girls love to fuck on camera the way Christy does. Jimbo comments: "Christy is just amazing. She is so sexy looking and looks incredible when she is fucking. I would love to tit fuck her and cum all over those awesome titties of hers." "What a fuckin' woman," writes Your Skipper. "Don't want one with itty bitty tittes and a tiny hiney. Christy is a full-grown woman. Thank you, Jesus!" "There are very few models hotter than Christy," writes Gargoyle. "I love looking at pictures and videos of this incredibly busty young beauty, especially when she fucks. Thank you for bringing her to us, and please, more Christy!"