(NSFW) In Lesbian adult films, do you think it is possible the woman are not really turned on?

I mean, in male/male or male/female porn it’s usually pretty obvious the guy is turned on enough to have an orgasm, no matter how fake the acting is. But, in lesbian porn it’s hard to tell if it’s real excitement or just acting. Frankly, I am pretty sure if I was in a safe setting and someone went down on me like I see happening in g/g porn, I am pretty much sure I am in for the whole ride.