pan·der 
(păndər)
(păndər)intr.v. pan·dered, pan·der·ing, pan·ders
1. To act as a go-between or liaison in sexual intrigues; function as a procurer.
2. To cater to the lower tastes and desires of others or exploit their weaknesses: "He refused to pander to nostalgia and escapism" (New York Times).
[Middle English Pandare, Pandarus, from Old Italian Pandaro, from Latin Pandarus, from Greek Pandaros.]
pander n.