29-Year-Old Guy’s Third Wheel Instagram Account Is Adorably Hilarious [PHOTOS]

Meet Peter. He's 29, and his best friend, Marissa, started dating his brother, Ben.

To be expected, Peter became the third wheel. He and Ben lived together when Marissa and Ben started dating, so of course he was there all the time.

Peter decided to start photobombing their cute photos because, well, he was there and why not.

Now the couple is engaged, and Peter has a slew of photos that he put on his third wheel Instagram account so we can also enjoy them.

According to an article on BuzzFeed, Peter's mom was his biggest supporter in the photos, and that he gets people asking to be the guest couple in photo shoots.

I have been the third wheel more times than anyone would ever want to be, but I've never had as much fun as Peter.