I think Weston expressed candid frustration with those who described his peppers in sexual tones:

The peppers which are libeled more than anything I have done, ‒ in them has been found vulvas, penises or combinations, sexual intercourse, Madonna with child, wrestlers, modern sculpture, African carving, ad nauseam, according to the state of mind of the spectator: and I have a lot of fun sizing up people from their findings!

Now call the above explanation my defense mechanism become active [sic], I say that it is disgust and weariness over having my work labeled and pigeonholed by those who bring to it their own obviously abnormal, frustrated condition: the sexually unemployed belching gaseous irrelevancies from an undigested Freudian ferment.