As same-sex couples gain greater social acceptance and new rights, their numbers in the United States are rapidly increasing. Yet few researchers have studied immigrants in same-sex couples on a large scale. Using the American Community Survey from 2008 to 2019, this study compares immigrants in same-sex couples to corresponding different-sex couples in order to characterize and assess the scale of “sexual migration” to the U.S. Moreover, we evaluate how the policy environment regarding same-sex couples shapes migratory patterns. We find that, compared to different-sex immigrant couples, immigrants in same-sex couples come from richer, more democratic countries that are less represented in immigrant networks. Fixed effects models show that as origin countries become more LGBT-friendly, we see more LGB immigrants from those countries in the U.S. On the individual level, immigrants in same-sex couples are more likely to live in progressive U.S. states, an effect that increases in strength as migrants come from for more LGBT-friendly countries of origin. Our findings put into question dominant models of migration that emphasize economic and network effects, suggesting the importance of considering sexuality as well as political and lifestyle motivations more broadly.