Mom is driving while talking to her son before a tragic car crash. Mom passes instantly. Her son is very close to the end when we cut to the hospital where she is standing over her son begging him to join her on the other side. She will then have her boy forever. Mom has been on the other side for a few days, waiting and worrying about him, wondering when he will come to her to spend their eternity together.
Her son finally arrives. Mom checks all over his body to make sure everything is working. Mom shows him her body is working and plays with herself while telling him how to play with himself to make sure. They both use the vibrators like they did together almost every night prior to the accident to 'reconnect'. That is how they always feel the closest.
Mommy will take care of both of them from now on.