Boccaccio wrote:re Wulf #169 "The feet, the breasts, the facial expression, and an overall erotic position. A damn near perfect image. Thank you for sharing."
It's a very close call, but I think the first image is 'primus inter pares.' Perhaps because we can see the determination, the intensity in the face of the man wielding the cane.
For me, it's not so much the suffering of a beautiful, full-breasted young woman, per se, that thrills me. It is the savagery, the sadistic lust of the villain(s) who takes such pleasure in causing her suffering.
A subtle distinction perhaps, but an important one, at least for me. That's not to minimize the importance of the heroine's anticipation and dread. But while many of us love to see the horror in her eyes as the direness of her plight becomes apparent, it is the villain's sexual satisfaction at having elicited that reaction, and HIS anticipation and arousal at the prospect of the flogging to follow, coupled with his surge of sexual energy as he delivers each successive stroke, that separates a truly memorable thrill scene from one that is 'only' good.
It is interesting to me that, though we all have similar tastes in the basics (suffering females), that we also have such a varied specifics things that really work for us on a personal level. You tend to key on the torturer, and I nearly always key on the tortured gimp (unless the torturer is female, then it's a two for one). Variations in the specific scene is also a huge factor for each of us. It's one of the things I enjoy since finding this forum, and that's all the different triggers that really do it for us. Variety is what makes it all more interesting here, imo.