Doctor Delane is conducting some research into human behaviour patterns and her study is currently looking at natural, instinctual reactions; she wants you to do what comes naturally when she presents you with a series of visual stimuli...namely her sexy underwear, her HUGE NATURAL TITS, her big ASS and JUICY SHAVED TWAT! Her experiment is going well- you're WANKING like a madman! She enjoys watching you STROKE YOUR COCK as she gets NAKED and she concludes the procedure by encouraging you to SPUNK...who says science is boring?