Tying cherry knots, smiling, doing party favours
Carmen has an oral fixation.
Being able to tie a cherry stem into a knot is a sign that one is a good kisser/is able to work their tongue well.
Notice the wordplay…instead of giving party favors, which is what hosts usually do, Carmen is doing party favors, which implies she is performing sexual acts with guests of the party (most likely for money).
“Party favors” can also refer to the drugs (ecstasy, cocaine) hosts give their guests. But given that “party favors” were originally an old Hollywood term for performing sexual acts with guests at a party (for a role, for money, etc), it’s more likely it’s the Hollywood-type reference.
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