Oh I guess those are his legs 
I thought the bottom semicircle was the back of a woman's head, and he was gripping the base of his dick while she licked his balls (unseen)
This is like the rorschach test to see who's still master of their domain.
"Oh it's a guy beating off? I saw three Finnish lesbians caressing each other on a Sybian. The first, we'll call her Olga...
(Two pages later)
and finally the dildo goes back to its rightful place on the shelf."