I saw an interview with Stoya where she said Katsuni's ass tastes like strawberries. That explains these next clips.
Clip 1: Katsuni's thong gets peeled off, dude licks her from behind.
http://galleries.videosz.com/afro-invasion_5/25,4236,0.html
Clip 2: Katsuni is on all fours, Daisy Marie...