The man, whose identity is protected because he was 17 at the time of the offence, admitted to posing with Parsons at a house party in Cole Harbour, N.S., in a photo taken two years ago that was later circulated online.
On Thursday morning, he’ll learn if he must serve jail time.
The photo shows Parsons and the 17-year-old both naked from the waist down, with him pressed against her. He's looking at the camera and giving a thumbs-up.
The photo is a sealed court exhibit Thursday. Parsons, who learned of the photo when it appeared on social media, faced intense bullying over it and took her own life in April 2013.
The teen who took the photo pleaded guilty to distributing child pornography in November.
When Thursday's sentencing ends, an independent inquiry into the handling of the case will start.
Murray Segal, a former Ontario attorney general who was appointed to run the inquiry, is expected to return to Nova Scotia next month to resume the work that was put on hold when the court cases were launched.