It's a game of Strip Frenzy, played in teams of two, with Catalina and Julie taking on Georgia and Aurora. The girls on each team take turns playing, and when a player loses, both members of her team get a piece of clothing cut off. (By the way, the players were supposed to wear four pieces of clothing, but one girl disregarded the instructions and wore only two. Just meant she had to sit there naked and shivering while the game played out.)
The losers lie on their backs facing each other, and in goes the cuke. It was pretty cold, by the way. Most girls aren't used to having something cold inside them, and it shows. One of the losers blushes red and can't stop giggling uncontrollably as she's fucked by the vegetable.