Teen Wolf star Tyler Posey is set to wed after proposing to the girl he has been dating since he was 11.

The actor met make-up artist Seana Gorlick at middle school and now he has confirmed to Us Weekly that she has agreed to become his wife.

He says, "I've been wanting to ask her to marry me for years now and I finally did it."

Gorlick showed off her diamond engagement ring at the Variety Power of Youth event in Universal City, California on Saturday (27Jul13), where her husband-to-be was honoured for his work with the Leukemia and Lymphoma Society.

Posey, who played Jennifer Lopez's son in Maid in Manhattan, has revealed he proposed during a recent vacation in Hawaii, explaining, "I didn't know if I was going to do it - I didn't have a plan or anything. I was so damn nervous. I just asked her and it was the coolest thing in the world. Her reaction was the sweetest. I can't even explain it!

"I've known her since I was 11 and been in love with her since I was 12. I'm so inspired by her. I think she's the coolest, most raddest (greatest) person ever. She's so nice and so cute."