Anathomy tutoring with a difference! Bubi properly taken by the hand!

I’m starting my studies this year and I’m currently giving tutoring to the trainees as a preparation for myself. In my favorite subject, anathomy, hehe. Well then I have an 18-year-old boy sitting there and the first thing I explained to him was the cardiovascular system understands it and then he just tells me that he doesn’t understand the erection thing…! and VIRGIN IS!! Craziness ! But I think I understand it now! He can go into his exam tomorrow feeling nice and juicy!