'Go Daddy' Nerd Jesse Heiman -- Sorry I Was a Total Creep

Go Daddy honchos were ENRAGED when they saw their nerdy spokesman Jesse Heiman put the moves on a married "Twilight" actress Tuesday night -- and Heiman is begging for forgiveness.

A rep for 35-year-old Heiman -- who famously appeared in Go Daddy's Bar Refaeli-kissing Super Bowl commercial -- tells us, the Internet company was extremely upset after seeing the video TMZ posted Wednesday ... showing Jesse awkwardly attempting to steal a kiss from Nikki Reed outside Bootsy Bellows nightclub in Hollywood.

Jesse tells us, he was ordered to cancel his appearances this week -- as well as to apologize for his uncouth behavior -- and Jesse gladly obliged.

Jesse's future with Go Daddy is unclear.