Tyler Posey: 21st Birthday Party with Dylan O�Brien!

Tyler Posey celebrates his 21st birthday alongside his pal Dylan O’Brien on Friday (October 19) in Las Vegas!

The two Teen Wolf heartthrobs were all smiles as they enjoyed their evening out at Tryst Nightclub.

PHOTOS: Check out the latest pics of Tyler Posey

“Thanks for the birthday wishes kids,” Tyler tweeted.

Tyler recently dished to MTV about Scott and Allison’s relationship on Teen Wolf, saying, “He’s a man. He’s mature, and he’s like ‘You know what? I’m…gonna say that I’ll wait for you, ’cause I know that you still love me.’”

10+ pictures inside of Tyler Posey and Dylan O’Brien celebrating…