Penn Badgley might have played Dan "Lonely Boy" Humphrey on Gossip Girl, but in real life he couldn't be more loved. The 30-year-old actor and MOTHXR frontman tied the knot with girlfriend Domino Kirke on Monday at a courthouse in Brooklyn surrounded by friends and family (including Domino's sisters, Girls star Jemima Kirke and Mozart in the Jungle actress Lola Kirke). We have no doubt that, as we speak, their gorgeous, simple reception is surely being pinned to "boho-chic wedding" Pinterest boards all across the internet. From Domino's understated white lace minidress to the "vegan, gluten-free magic" that was their wedding cake, see every detail from the affair ahead.