I always fapped using my hands but this looks like a truly unique experience,i always liked those doujinshi where the guy has sex with a palmtop sized woman, a fairy or a woman that was transformed into onahole. This type of sex sleeve is perfect to recreate that fantasy in real life,here hoping that this becomes a thing to make all the fans of the "minigirl" tag happy.
https://*****.com/
EDIT:To anyone saying that this is a repost from an alt account of the same guy that posted this stuff originally,just click on my name and see that i have posted hundreds of galleries on this website over the course of years,i have no connection to the people making these things,i just really like the concept.