我觉得这件事的关键在于，明知道是个色狼，还要去。去了，即使没有同意书，也可以说老娘不脱，走人,所以他找她拍照，她可以不去啊
I think the key to this is knowing it's a pervert and going. If you don't have a consent, you can say she won't take it off and leave, so he asks her to take a picture and she can go.