Ah, young love.
The 23-year-old Playboy heir Cooper Hefner is engaged to Harry Potter actress Scarlet Byrne!
The bride-to-be took to Instagram to share a photo of her excitement and GORGEOUS rock! Well done, young Hef.
"I was lucky enough to fall in love with my best friend. 💍" the Harry Potter alumn wrote of her engagement.
Congrats to the happy couple! Scroll through the gallery to see more Hollywood couples announce the big news on social media.