Christopher Schwarzenegger is showing off his dramatic weight loss.

The son of Arnold Schwarzenegger, 28, stepped out wearing a white tank top and jeans for an afternoon at a pumpkin patch in Brentwood, Calif. on Monday.

Christopher showed off his toned arms as he carried three pumpkins.

The actor’s sister Katherine, her husband Chris Pratt, and their daughters Lyla, 5, and Eloise, 3, were also at the festivities. The couple’s 11-month-old son, Ford, was not photographed.

At one point, Christopher, who also appeared to be sipping on a protein shake, was seen sharing a kiss with his girlfriend.

The star, whose mom is Maria Shriver, revealed earlier this year that he had lost 30 pounds.

He “gave up” one item in particular for Lent, which helped.

“I was like, ‘Well, if I’m giving up br

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