[F4M] Alien Researcher Tests Your Sexual Endurance (Patreon)

You've crash-landed on a planet ship far far away from home. The planet's native aliens, the Koo-Sai, are delighted to have a mysterious Hoo-Man to study...  you're much more exciting than the local flora!
You arrive at the lab for another day of exams to meet Lupine, a friendly Koo-Sai researcher determined to find out just how long a hoo-man can last when met with Koo-Sai pleasure techniques! 

TAGS: [F4M] [Alien Planet] [Sci-Fi Setting] [Science Facility] [Endurance Examination] [Hands & Knees] [Vibrator] [Suction] [Milking] [Probing] [Prostate Play] [Overstimulation] [Multiple Orgasms]

Plap SFX: BoshidoBlastas