The number of millennial men and women who prioritize political party alliance over good sex has skyrocketed since 2016, according to data from OkCupid. The matchmaking company surveyed more than 8 million users, and found that interest in dating someone with similar political beliefs has gone up 165 percent since 2004, while having good sex has decreased as a priority 30 percent.

Specifically, between 2016 and 2018, the number of women who consider politics more important than sex shot up from 27 percent to 42 percent, while for men that needle moved from 23 percent to 30 percent.

So what’s the link? Manhattan sex therapist Megan Fleming thinks dating strictly within one’s party is making people comfortable — too comfortable.