There was a break in the action while she was stripped of her loin-cloth, and the sentence read, allowing her to gather her wits somewhat. I have to believe that every nerve in her body was quivering in anticipation of the cold iron.
That was what I had in mind when I wrote that part. There were things they had to do before they could drive that first nail, including removing her shackles and neck collar, get her on her feet, strip her loincloth, and go through the ritual of reading her sentence. Each of those tasks took a little time, but Sabina was acutely aware that each brought her closer to those nails. Perhaps she could draw out the process by fighting them, but these were men used to managing strong men fighting for their lives, and her struggles were ridiculous in comparison.
Sabina begged her domina, Julia Lepida, not to have her crucified. But she always addressed her as "Domina," as a slave addressing her mistress. Sabina - or Julia Lepida - was lost in her role as slave. Unless she broke her role and addressed her "domina" by her true name, her "domina" didn't dare stop what was about to happen. And there is also the question of whether she would ever have stopped the crucifixion; no one would have believed the truth, and from the "domina's" perspective, if this "slave" lived, what might she do next? Maybe it would be better for her to carry this through to the end in any case.
Sabina's heart was pounding, her terror mounting as the carnifex read her sentence and ordered them to "place the slave on the cross." Absolute panic set in when she felt them dragging her down to the ground, her helplessness in their iron grip as they forced her naked body into position on the beam. She knew then that any hope was gone. They were going to nail her to the cross. Part of her was screaming in panic, while deep down, a part of her was watching wide-eyed, anticipating the only thing that could fulfill the aching need in her.
Her executioners, however, were "private pay" and business-like. They did not draw the affair out, except to ensure Sabrina was conscious for the spiking of her feet.
The executioners were driven to haste by two things: First, Balbus thought there was a possibility that Julia Lepida might give in, have mercy, and stop the crucifixion altogether. And second, there was a storm coming and he wanted it done before the rain hit.
Once her wrists were nailed, Balbus wanted his people to take their time and give the crowd a show. He crucified slaves and criminals for pay, and he had a reputation to maintain for delivering full and just punishment that everyone could see, as well as being entertained. So they took their time lifting her up, hanging her on the cross, and then letting her struggle with her feet free until she fainted. Likewise they were in no hurry with the rest of it - installing her cornu, nailing her feet, and placing her titulus. Sabina had an agonizingly long time to see and know that these things were coming and to feel every blow of the hammer until she was truly a part of the cross, inseparable.
I have to believe that every Roman citizen schooled themselves to enjoy viewing the torment of the crucified.
Up until modern times, what we consider to be "civilized" people have watched with fascination as the condemned were publicly tortured and executed in some of the most grotesque and cruel ways imaginable. They still do in parts of the world that we don't consider to be particularly civilized.
When the Romans adopted crucifixion as a punishment I suppose it was one of those new foreign things they could add to their repertoire of really bad ways to punish people. It apparently caught on, and by the time a generation had passed, no one could actually remember a time when the sight of crucified slaves and criminals was not common. It had become the status quo, and there was no reason to change it, at least until Christianity came along and gained traction.