The trade-off between frequency of intercourse and sexual partner accumulation may reflect evolutionary adaptations

The adaptive trade-offs between long- and short-term matings may be mediate d or at least reflected partially by the trade-offs between the relative re inforcement obtained through a greater frequency of inter course (typically greater among cohabitants) versus a greater frequency of partner change. T he differing correlates of each approach and meshing with the Sexual Strate gies Theory of Gangestad & Simpson are discussed.