According to the rule, the age of the younger partner (regardless of gender) should be no less than seven more than half the older partners age. Martin, then, shouldnt date anyone younger than 26 and a half; Lawrence shouldnt go above 34.

What is considered a long age gap?

Across Western countries, about 8% of all married heterosexual couples can be classified as having a large age gap (ten years or more). These generally involve older men partnered with younger women. About 25% of male-male unions and 15% of female-female unions demonstrate a large age gap.