She later posted a video of her giant diamond engagement ring alongside the caption, “HANDS STILL SHAKIN’ — MOMS SPAGHETTI — I’m FIANCÉNCHED.”
Buss also posted photos to Instagram of him on bended knee, showing Tallulah beaming with joy as she lovingly squeezed her new fiancé’s face right after he popped the question.
The filmmaker captioned the post, “I can finally call you my fiancé. Love you forever Buuski Lu, you are my best friend ❤️,” adding the hashtag #maythefourthbewithus to reference Star Wars Day, the informal holiday celebrated by fans of the George Lucas franchise.
Tallulah’s sisters could not contain their excitement and sent their newly engaged sibling their well-wishes on social media.
“I love these crazy kids,” Rumer Willis captioned pictures of the happy pair. “Congratulations @dillonbuss and @buuski I love you both so immensely and I am so excited for you. 💍💍 💍💍💍 💍.”
Scout Willis added on her Instagram, “I’m so buoyed by this JOYOUS LOVE CELEBRATION!!!! HIP HIP HURRAY!!!!! … Welcome the first official WILLIS BROTHER.”