Far too many LP girls remain motionless (and emotionless...) while being fucked. So hot, when a girl moves her hip and "fucks back", just to get the cock even deeper! Of course that´s a clear sign of real and passionate fucking. Mostly added with some dirty talking, which is cool, too.
Another thing, that very rarely happens in LP scenes: female and male actors sweating (which is closely connected with moving the body with full power). (Probably it doesn´t happen, because of the many breaks and many changes of positions.) Mike Chapman was a master of getting sweaty. A clear sign of intense fucking. Even better, when the female model gets sweaty and exhausted, too - and gets so turned on, that she licks up the sweaty body of the male models.
What do you think, guys? Do you want full body power, too?