Yes, it is true. Female chimps are inclined to have sex with male chimps who give them meat from their hunt. As Christina Gomez’s research has uncovered:
Humans and chimpanzees are unusual among primates in that they frequently perform group hunts of mammalian prey and share meat with conspecifics. Especially interesting are cases in which males give meat to unrelated females. The meat-for-sex hypothesis aims at explaining these cases by proposing that males and females exchange meat for sex, which would result in males increasing their mating success and females increasing their caloric intake without suffering the energetic costs and potential risk of injury related to hunting. Although chimpanzees have been shown to share meat extensively with females, there has not been much direct evidence in this species to support the meat-for-sex hypothesis. Here we show that female wild chimpanzees copulate more frequently with those males who, over a period of 22 months, share meat with them.**
Apparently people who know of the study have been asking, What does this show about human beings? Quite frankly, I would have thought it is very clear. There is little more sexy than his doing housework, and preparing dinner is near the top of the list.
**Gomes CM, Boesch C (2009) Wild Chimpanzees Exchange Meat for Sex on a Long-Term Basis. PLoS ONE 4(4): e5116. doi:10.1371/journal.pone.0005116