Heather Matarazzo and Carolyn Murphy: Engaged!

Actress Heather Matarazzo — known for her role as Lilly Moscovitz opposite Anne Hathaway in The Princess Diaries — is tying the knot. With a girl!

Matarazzo's rep tells E! News that the 25-year-old actress has proposed to her girlfriend, Carolyn Murphy.

"It was really cute. First Heather proposed to Carolyn, and then Carolyn proposed to her," the rep says, adding that "it was love at first sight" when the two met a little more than a year ago and began dating.

Heather Matarazzo and Carolyn Murphy aren't the only stars heading down the aisle since California struck down a law banning gay marriage.

Ellen DeGeneres said she and Portia de Rossi will wed soon. Star Trek's George Takei is also planning a September wedding with his partner.

Will Lindsay Lohan and Samantha Ronson be next?