Boo hoo. slug porn is private.
I was at a dance once and a friend came up to me and said, "I have some dirty pictures to show you." Slugs had mated on her porch beside the door. She had a full set of pictures of them doing the nasty. Quite fun.
A bit more on gnawed off slug penises at
Last Word on Nothing.
Intermountain (Cascades and Coast range) oak savannah, 550 - 600 ft elevation. USDA zone 7a. Arid summers, soggy winters