26-year-old barbara waited patiently until jack turned 20, fulfilling the half-your-age-plus-seven rule, before pursuing him romantically
the rule to define the youngest that a romantic interest can be before the relationship is indecent
"26-year-old barbara waited patiently until jack turned 20, fulfilling the half-your-age-plus-seven rule, before pursuing him romantically" What is the definition of "half-your-age-plus-seven"?