Sentio Volupta Publishing presents: The Personal Assistant Series by Sam Snowfeldt Part 4 - Research volunteers, the study of female sexual response Cast: Kristian: the executive, Lisa: his personal assistant Mina: long-term maid to Kristian Holger: gynaecologist at International Family Link Hospital Rachel: assistant to Holger's scientific study Location: Family Link Hospital, Shanghai, the People's Republic of China Tags / story line: Point of View, POV, Porn fantasy, Gynaecology chair, Coloposcopy, pussy examination, peeing, pissing, anal examination, rectal examination, rectal speculum, semen dropping from anus, kidney bowl, fellatio, oral sex, swallowing, nurse, lab coat, open crotch panties, scientific study, gynaecologist chair, gynaecologist table, fixation, medical neck collar, chocking, saliva, pussy licking, lesbian sex, nurse play, doctor games, wet sex, sticky panties, kinky gynaecology exam, clitoris licking, cunnilingus, fingering, anal plug, anal vibrator, pussy fisting, peeing, pissing.