Police said the man, armed with a knife, slipped into a residence on Farragut Road and Remsen Avenue in the Canarsie section.
The suspect reportedly hid behind a shower curtain, and when the girl walked in, he threw her to the ground and raped her.
The horrific attack happened on March 5, but police are still looking for the suspect.
He's described as a heavy-set black male who is 5'4" to 5'8" and speaks with a Caribbean accent.
Anyone with information incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).