Progress in Research: Chapter Four, Page Sixteen

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Maureen likes what she sees while she is not seen.

Kareem fellates Larry watched by the invisible Maureen.

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Progress in Research: Chapter Four, Page Sixteen written and commissioned by Dr. Faustus of EroticMadScience.com and drawn by Lon Ryden is published under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.)

And while it’s probably immature of me, it brings to mind Frederic Leighton’s Athlete Wrestling with a Python (1888-91).

Source is Wikipedia.