First of all, the male kitten is no longer fully male -- he's an "itten". Poor guy was "cryptorchid" (from the Greek, meaning "hidden orchids"). The neutering operation was actually quite a serious abdominal surgery -- his incision went from where the goods should have been to where the vet finally found them next to the kidney. Yikes!
His name has now settled on Gomer (as in Gomer Pyle USMC).
The female (whom we now frequently refer to as "Victim" on account of her schizoid personality) was spayed a few weeks later. She was a brave little toaster, and both have recovered well.