After a very specific toy and Google doesn't understand what we want.

[NCupthebum]

Asking the sex topic for help with this this please.
My partner, the sexy fucker, and I already have a toy that he loops around his penis which slides up my bum whilst he is PIV
Is there one that loops around his penis that would penetrate my vagina while he was inside my bum?
The one we have doesn't work inverted. I could supply a diagram, but this is not a parking thread.
The dildo would need to be vagina sized (rather large if you don't mind) rather than bum sized (smaller than a penis, I like to feel full up but there is a limit to my comfortable capacity).
Obviously we have both googled but keep getting offered strap ons which we don't really want
Anyone know of anything that we are after please?

Thanks for fucking up your Google searches in pursuit of my filthy pleasure @PaulRevere. You will be rewarded in heaven (or quite possibly hell if you are lucky).
That harness does look like it would do the job thank you. I do still have a hope that we can find one that can be attached like a cock double-decker.