Yeah, there were some who went "voluntarily" - depending on what exactly they thought was going to happen the first time.
Also, these girls were around 15, from dysfunctional families. Wouldn't surprise me if they'd been raised in an environment of drugs, sexual abuse and, poverty and violence etc. You really think they deserved being snared into basically a Rape ring, for that first initial mistake of going along with the "recruiter" (another 15 year old girl) - especially when there's drugs involved?
I mean..... what... would you say a child who fell for the "I've got some candy in my car" trick deserved it? How far are you willing to go down that line of thinking?