Depends on the 14 yr old. Thats why 14 is not the age of consent in this culture.
Some insecure 14 yr olds would be flattered by the attention, and there are supposedly videos of him behaving inappropriately with other young girls.
Theres no way Joe couldnt have known about this, and yes, he would have had the obligation to report.
Most 14 year old girls would feel helpless in this situation. Especially if the perp is a big cheese
Shit 14 used to be age of consent not so long ago