There is no mention of study results for humans but this could have lots of implications for people in the lifestyle.
Perhaps not surprisingly, DNA paternity analyses confirmed that the most recent male partner had indeed sired the offspring in the vast majority of cases. However, the scientists also found that the size of the offspring was strongly related to the size of the female’s first mating partner. At the same time, offspring size was unrelated to the size of the most recent partner, even in cases where there was definitive evidence that the most recent partner was the father. That’s right—the young flies tended to look more like mom’s first mate than they did their dads.