To get into the Doubling position, the bottom-most partner should lie down on a plushy surface. From there, the person who will receive oral sex from them will squat over their face for easy access. Finally, the person who is providing oral sex to the bottom-most partner can get on all fours between the bottom partner's legs and get busy.
We understand that this position may be completely inaccessible to you as a result of your disabilities and/or chronic pain condition; and we strongly recommend you have a conversation with all parties involved before attempting this.
More About Doubling Threesome Position
The Doubling position offers a lot of flexibility for interaction—and is one of the threesome sex positions out there that doesn't focus on penetration. Instead, the Doubling position "doubles down" on oral sex—with each partner either receiving or providing oral sex. Since oral sex tends to give people with vulvas a better chance of reaching orgasm, this can be a fantastic position to pull out when the end goal is orgasms for all. This position may also be beneficial to attempt if two partners have more mobility but the bottom-most partner does not.
The Doubling sex position also makes a fantastic foreplay choice for threesome play. While it can definitely be used as the main event, the Doubling position provides non-penetrative stimulation that works fantastically to arouse bodies and get them ready for intercourse if you want to switch to another position.
The Doubling sex position works fantastically for interaction between the three people. While the bottom-most person is pretty preoccupied as-is, the two partners on top can interact at their own comfort level. The squatting partner can set the pace for the other on-top giver's oral sex by forcefully moving their head up and down. (Just ensure you've communicated and everyone has consented before attempting something like that!) At any time, both of the on-top partners can choose to make out or touch each other as well.
It's entirely up to the comfort level of everyone involved!
Since the person giving oral sex to the laying person isn't receiving any stimulation of their own, this may be a sex position where you want to consider involving some sex toys. A panty vibrator, or another hands-free vibrator, could provide pleasure without many modifications to the position. Alternatively, slipping in Liberator sex furniture (like the Liberator Tula or Wing) could hold the person's favorite vibrator in place between their legs while they enjoy providing pleasure.
Sex furniture could also be useful in this position because the squatting oral sex receiver is so high in the air. If that's not an option, though (or if you just aren't feeling the sex furniture this time around), you can use pillows to support the laying partner's neck. This can reduce neck strain—and pillows are always good to have on-hand for later should you choose to swap to a different threesome sex position!
Feel free to experiment with the exact body placement for everyone's comfort. For example, the squatting partner who is receiving oral sex can choose to kneel instead—like in the Double Cowgirl position. Or, if the partner giving oral sex to the laying partner finds the bending too intense, they can lay out flat or experiment with other angles to best pleasure the person laying down. The most important thing in the Doubling position (and in any sex position, really) should be making sure everyone is comfortable and having a great time.
After all, it's hard to focus on pleasure if all you can think about is your fallen-asleep leg!