Lyric discussion by daybreak02 

Cover art for Big Eyed Beans from Venus lyrics by Captain Beefheart and the Magic Band

@Ziff.

The song may be about sex. However, Big Eyed Beans are not boobs. Big Eyed Beans is a wordplay variant on 'Bug Eyed Beings' i.e. Aliens. he was a big fan of a pun, old Beefy.