Men reach their sexual peak at eighteen. Women reach theirs at thirty-five. Do you get the feeling that God is playing a practical joke?

The humor hinges on incongruity: if men supposedly peak sexually at 18 and women at 35, heterosexual couples are imagined as perpetually out of sync. Rudner frames that mismatch as evidence of cosmic mischief—“God” as a prankster—turning a potentially anxious topic (sexual adequacy, aging, compatibility) into a light, rhetorical complaint. The line also satirizes how people lean on pseudo-scientific generalizations about gender and sexuality, treating them as fixed rules that conveniently explain relationship frustrations. Its punch comes from compressing biology, social expectation, and theology into a single, wry question.