A New York city teen came face-to-fang with a 3-foot boa constrictor Sunday that slithered uninvited into the youngster's home — a jarring confrontation that had the whole family in a panic.

"The snake was just staring at me," said a shaken Kareem Lewis, 18.

The close encounter came around 10 a.m., when Lewis was waking up in the family's first-floor apartment on Sherman Avenue.

"I started to panic when he started to slither at me," said Lewis, whose mom was at church.

The teen called 911, and police held the snake inside a pillowcase until animal control arrived.

Lewis guessed that the snake slithered in through a window.

Click here to read more on this story from the New York Post.