Extender Positions

The OH and I have this extender: https://www.lovehoney.co.uk/product.cfm?p=37226 We love using it but can only use it in missionary. Has anyone else got one and do you use it in other positions? It’s not rigid enough to use when she’s on top. Thanks

Her on back, knees up. Him on side next to her. Stops it going in too deep and good for him to do stuff with hands 😁 Have fun.