Motifs in the James Bond film series the degree to which Bond girls are pivotal to propelling the plot forward varies from one film to the next. Five of the Bond girls are "bad" girls (or at least working for the villain) who turn "good" (or switch sides) usually due to Bond's influence. Bond has fallen in love with only Tracy di Vicenzo in "On Her Majesty's Secret Service" and Vesper Lynd in "Casino Royale", but both of them die at or near the end of the respective films. Roald Dahl, a screenwriter of "You Only Live Twice", said he was given a formula to work to
Vesper Lynd at first is unwilling to be his trophy at the poker tournament with Le Chiffre. However, she assists Bond when fighting Lord's Resistance Army leader Steven Obanno attacks him, knocking away a gun out of Obanno's hand and giving Bond the chance to kill him. She afterwards retreats to the shower, feeling that she has blood on her hands from helping to kill Obanno. Bond kisses the "blood" off her hands to comfort her, and they return to the casino. His kindness does not prevent her from doing her job, however; she refuses to bankroll him after he goes bankrupt