Hi, this technique may already been discussed but I’d like to share in case it hasn’t.
1. Insert aneros (with lots of lube)
2. Put on underwear (with thin strap like thong/panty) at knee level
3. Hook strap/thong to top aneros tab
4. Adjust underwear so that the tension slowly pulls aneros out
5. When you feel the toy about to exit, slowly clench your anal/pc muscle to pull it back in
6. Repeat 5
I like using the MGX b/c of the ribbing. You can also flap your knees in and out to get the toy to fuck you. Have fun!