Wardrobe: nurse white mini skirt but nothing on head and some button open to see your cleavage. Nude legs and mules.

Room : medical room and chair

0-3 min: You enter in the laboratory as my older step-sis. You see me standing up but tied. Not nude but only towel. (Like after shower). You sit on a chair. Sexy cross legs. Calm down little step-brother, trust me. Let me explain. You see, Mum agreed to allow me to use you for some research. I'm collecting data on the male reproductive system. I'm checking volume of semen production and hormone levels m... Show more