There's a surprising lack of Grease fanfictions. Especially Danny/Kenickie.
PLOT: Danny is Kenickie's second. And Kenickie is Danny's first. Danny's a little nervous because Sandy wants to go all the way, and he runs to his pal Kenickie to show him the ropes.
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This one's set in Grease 2
PLOT: Michael shows Johnny how they do it 'down under'.