Jack had caught Ianto with the blade as he was tying to cut up his own skin. That had been the only punishment that had not be for sexual gratification. It had not been too harsh, Jack's voice had done that on his own. He had scolded Ianto, cleaned the wound and then like a child, sent him to the corner to think about what he had done. Jack knew why he had done it, but still he could have really hurt himself or got it infected.
"Good." He kissed his lips one last time before he started on his own body. Again, they would probably be dirty again soon, but might as well not waste the water. Once he was done he turned the water off and reached out for some towels. He wrapped one around him then helped Ianto towel off. This did not come easy as Jack wanted to lick stray runnels of water off the boy's shoulders. He kissed up his neck, feeling his body coming back to life, although he would rather get back into the bed.
He got out of the shower and grabbed some cream before putting some on Ianto's neck where the punctures where. He then cleaned his hand and left the towel. Jack walked casually back to the bedroom and jumped on the bed, messing up the nice neat covers Ianto had made this morning.