les and amanda anderson are here to pick up their 19-year-old son zach. >> they're working on him. they said they're getting him now. >> reporter: it's been two and a half months since they've seen him. >> how are you, buddy? >> reporter: finally, the hug they've been waiting for. >> you all right? >> yeah. >> reporter: he was arrested last winter after having sex with a girl he met on the dating app hot or not. the girl told him she was 17. but she wasn't. she was just 14 years old. >> if you'd known that she was 14, would you have had sex with her? >> i wouldn't even have gone to her house. i literally wouldn't have gone to her house at all. >> reporter: she's since admitted to lying about her age but that didn't keep zach from going to jail. >> there's no criminal in our son. and the mother and the girl herself said, please don't call us a victim, my daughter's not a victim, she was willing and participated and everything that happened, she wanted it to happen. >> reporter: even though he's out, he's far from free. today is his first day as a convicted sex offender. for the next