Mayoi is a kind-hearted girl who can't say no when a man asks her. She is truly a perfect sex friend, and taking advantage of her kindness, I ask her to take care of my dick as my sex friend for anal sex. In order to make her understand her position as an anal toilet, I have recently been training her by putting tape on her front hole so that she doesn't want a dick. [Scene 1] After the talk, I check her underwear and shaved genitals, and then I have her show me her electric massager masturbation. In preparation for the anal play that follows, Mayoi gives herself an enema. Of course, I also showed her plenty of farts and excretion into the washbasin. [Scene 2] Finally, the anal expansion begins. I slowly loosen her anus with my fingers, and insert an anal stick? Anal pearl. Then I gradually expand my anus using an anal vibrator. Finally, it expands enough to accept a vaginal vibrator into my anus. [Scene 3] I use an anal balloon to expand my anus to the maximum. I writhe in agony at the sensation of the balloon violently inflating inside my intestines. She then tries inserting an anal plug that expands inside, and can't help but moan in pleasure at the unknown sensation. In the end, even her intestines are observed using a transparent speculum. [Scene 4] Mayoi has finally begun to desire a real cock. First, she masturbates with an extra-large dildo to get her anus used to the shape of a penis, and then she gives a long, sticky blowjob before finally moving on to anal sex. She continues to shake her ass lasciviously in the cowgirl position, and enjoys her long-awaited anal orgasm in various positions!