I don't know why, but TMZ decided to ask Shanna Moakler (ex-wife of Blink 182 drummer, Travis Barker) about breastfeeding, but they did. And she answered.
"It's incestual and gross."
Here's the link to the video, and I caution you that it is painful to watch: http://www.tmz.com/2013/05/08/shanna-moakler-breastfeeding-tmz-tv/ 
She's certainly entitled to her opinion, but I don't think I have ever heard someone say that breastfeeding was incestual before.
Comparing breastfeeding to incest, isn't that too much?