Men who do fewer 'female' housework tasks have more sex
Males who perform household tasks considered manly and leave traditionally female jobs to their partner may get through more condoms than guys who equally split the workload.
New research published in the journal American Sociological Review has found that couples who stick to traditional gender chores - such as the women doing the cooking and cleaning and the man performing DIY duties - tend to have more sex than those who share the tasks.
Investigators from the University of Washington (UW) used results from the National Survey of Families and Households and discovered wives who do the shopping and men who pay the bills report greater sexual frequency.
Julie Brines, an associate professor of sociology at UW, said the organisation of everyday life in marriage is still influenced by gender.
Ms Brines added: "It seems that the gender identities husbands and wives express through the chores they do also help structure sexual behavior."