Nothing says senior pictures like a fat naked guy.

This high school student could barely contain her amusement while posing for her senior picture – when she was photobombed by the nudist and his pooch.

Jillian Henry, 17, a senior at South Eugene High School in Oregon, was being photographed by her friend Elena Nesbit on Saturday when she noticed the potbellied nudist appear in the Willamette River near Mount Pisgah.

The long-haired blonde, clad in a black dress, smiled as she glanced over at the interloper and his dog as they stood nonchalantly in the water.

“Love my senior pics,” Henry tweeted along with a bashful, smiling emoji.

The pictures quickly went viral, garnering almost 25,000 retweets and 75,000 likes since the tweet went out Sunday.

“I posted it and was super excited when it got to just a few hundred favorites, and then I went swimming and was out of cell service for a couple hours and when I got back into service it was at a few thousand and just kept getting more and more,” she told The Oregonian.

“I never expected it to get that big,” she added.

Henry was surprised by all the exposure she’s gotten.

“It’s kinda crazy when you think about how many people have seen that picture of you and that’s it’s a topic of conversation across the country,” she said, but added that all the replies have been “pretty positive.”

“This is your legacy now,” Twitter user @khai_dreams posted.