TikTok star Megan Eugenio — AKA "Overtime Megan" — is adamantly denying she took a picture in bed with Antonio Brown … saying flat-out, the person in the snap "is not me."

A picture of the controversial ex-NFL superstar laying alongside a mystery woman made the rounds on social media this week … which appeared to be a post on his personal Snapchat.

Given the person's appearance, fans of the sports personality initially speculated Megan was the one cozying up with A.B. … but on Wednesday, she put an end to the rumors.

"I cannot believe I have to say this but that is not me," Eugenio said on Instagram alongside several crying laughing emojis.