Because everyone likes boobies!
In case you still weren’t sure if PETA was full of complete psychopaths, you may enjoy knowing that they recently wrote Ben and Jerrys requesting they start using breast milk in their ice cream instead of cow milk. They claim that since cow milk was never meant for humans, it shouldn’t be used in ice cream. B&J’s may be liberal, but they aren’t morons, so they told PETA where they could stick it…in much nicer terms. -For more info.