I give you a lesson you’ll never forget. Almost 20 minutes long! You were excelling in my anatomy class and I just knew you’d thrive in my after hours extra credit lecture. I show you the typical length of the vagina and use a short toy to demonstrate, but the girth certainly is above average! I then show you what my extra stretchy vagina can handle for comparison. 11 inches of knotted cock!! The lesson ends with you witnessing the female orgasm. All for science of course.