Bookending

The act of two partners both anally penetrated using the same double ended dildo.

Both partners then rub against each other - back to back in order to create the visual of bookends.

"Me and my wife tried bookending last night! That double ended dildo was way too big for me! My ass is soooooo sore today but it's not that bad in comparison as she's still at home trying to fish it out.... Great night!"

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