I think Martial mentions dirty old men who bribed to the guards so they could squat in the tunnel leading into the arena of the Colosseum,I meant don't crucify or otherwise execute her in real life. It would be interesting in story and/or image to see the executioners point to her for special display, complete with payment for the right to touch her muscular butt. For that matter would paying for the right to touch the crucified victim's body be part of the crucifixion? It wouldn't be a surprise for the Romans especially to raise money this way.
and finger and grope the girls as they were lined up waiting to go out and "perform" (or be performed on!) on the sand.
I took up the idea in my story 'Eulalia Christa' (in the Archive), a rich old man buys the ticket to manhandle me in the kind of way you're thinking of.