stap-on with holes hentai

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hello /r i've been searching everywhere i can look and im trying to find a specific hentai
i've only seen a small clip of it a while ago

in it the have a strap on dildo, the type that also goes into the mouth. so its like a mouthpiece that straps to your head then the other side is a dildo
the unique part is there is holes through both sides
they force a girl to wear this while the use the dildo on another girl and there is fluid transfer

if anyone has any information on what side or names or anything let me know

also pic is the sex toy without being hollow and having holes throught