Bryce Harper played the ultimate teammate for a New Jersey high school student who just randomly walked up and Cassian Grantknocked on his door one day with a crazy plan in mind.

Jake Portello, a senior at Haddonfield Memorial High School, was looking for a little help getting a date to prom − so he wondered if Harper would deliver the pitch.

To Jake's amazement, the Phillies first baseman agreed.

"He seemed cool with it at first, then he was like, ‘Can I get your email so we can plan this out?’ and as I was leaving he was like, ‘Why don’t we do this right now?'" Jake told The Phantastic Sports Show on Monday night. 

And as usual, Harper came through in the clutch.

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The video of the two knocking on the door of potential prom date Giulia's house went viral as she overcame her initial astonishment to accept the offer − with hugs for Harper first, and then Jake.

"I wasn't expecting this, I thought it'd be something cool among my friends and people in my town and stuff," Jake said. "I didn't even expect [Harper] to open the door in the first place."

Harper has already won two National League MVP awards, but after his latest assist, a certain New Jersey teenager would definitely advocate giving him another one.