u/Either-Economics6727

I made a homemade prosthetic with the Satisfyer Curvy and a penis sleeve. I haven’t used it for penetration yet but I’m hoping to soon. If I use the toy to fill up the sleeve completely, half of the shaft is too thick for penetration, so I would have to move the sleeve more toward the tip and leave it hollow near the top. So I need to stuff about 2-3 inches of the sleeve with something. Any ideas as to what might work? So far I’ve just tried paper towels, but then the shaft ends up kind of lumpy and flimsy.