Faith, Buffy, Harmony, Cordelia, Darla, Drusilla, Fred, Willow, Joyce or any incarnation of these characters .... or all of them .... to fall for Xander after attempting a spell to make a woman fall in love with him goes array and instead, he gains pheromones that make him irresistible to women in a close radius to him until he leaves their side?
Can be a crossover ... or done with a different character on my behalf. Ranging from Dean Winchester to Pete Ross from Smallville to Jason Stackhouse from True Blood and so many other fandoms!