Making them happy

"I'm afraid I have some bad news," pronounced Sarah. "It's impossible for me to ever make you human again... but there are a few things I can do to make your situation better." Sarah grasped the stone in both hands and made her wishes.
"I wish that Jon and Karyn loved being my breasts, and were perfectly comfortable with their new forms." The stone glowed. Jon's mind felt fuzzy for a moment, then it was gone. He remembered being angry and upset, but now he felt calm and content. He was safe and secure, part of someone else's body. He never had to worry about eating or drinking, or bathing, getting a job, doing work of any kind. Sarah would take care of him. She would cup him in her warm hand, or wrap him in a cozy bra. Plus, he was with Karyn now, forever, and could talk to her whenever he wanted.
"Hey Karyn, it's funny," he thought to her,"Before we changed, I was thinking about asking you out... I've liked you a lot for a while, but I was always afraid of it ruining our friendship. Now, though, we can be together forever."
"Ooh Jon, this feels so wonderful! Being a breast will make my life so much easier! I was dreading the start of my menstrual cycle in three days, but now I will never have to deal with cramps or bleeding again! Plus, I don't have to use the bathroom ever, so that's another plus."
Jon thought about that for a moment. As a breast, he had no penis, so he would never have to worry about embarrassing, messy ejaculations, nor erectile dysfunction. He thought about something erotic, an image of a nude woman, and he felt his nipple grow erect. It felt just as good as having a penis, but it was much larger proportional to his body.
"Sarah, could you do me a favor and rub my nipple?" asked Jon. Sarah obliged, tweaking it with her index finger. It felt good, just like when he masturbated as a boy, only much stronger. This was going to be good...