That's quite big and handsome prick, making the torture quite fun. Normally I just ask the guy how he'd like his prick to be treated.

However, the pictures give me sadistic thoughts. Doing different kinds of cbt, from slight slapping to ball kicking. The big round glans makes me want to hurt it from pinching with my nails to put needles into it.

Then, if we like to continue, I'd do the castration.