Quendra was the girl that Jeff tried to get into the study group when Annie was trying to get Rich into the study group. He brought her to look all cute and convince the guys to vote for her over Rich.
Then in For A Few Paintballs More, he briefly addresses her when they're outside about to assault the... icecream machine gun truck...
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http://28.media.tumblr.com/tumblr_lcb35gGx0t1qailr4o1_500.gif
http://www.megavideo.com/?v=57N0YAEJ