People always interpret visual images with sex, it’s human nature!
Check out this innocent photo of a lamp:
And this one. Guy’s are quick to see some naughty bits, where none exist:
That's her armpit, you perve!
I also like this double entendre from the 1960’s:
This image is used in psychology tests.
Children will see always seven dolphins swimming . . .
But after puberty, people interpret this image as erotic: