AVだと思われます
1: https://onapple.jp/image/picture1278/12.gif
2: https://onapple.jp/image/picture1278/15.gif
IVだと思われます
3: http://img.erogazopple.com/wp-content/uploads/2019/12/12-1.gif
4: http://img.erogazopple.com/wp-content/uploads/2019/12/16-2.gif
5: http://img.erogazo-ngo.com/wp-content/uploads/2015/11/110321.gif