DIY to make a shitty harness work?😭

Y’all I got the Flexit harness from Axolom with the intent of using it with Hyperon for play and turns out you shouldn’t actually get your own size and maybe get two sizes smaller wtf.

I got L and it doesn’t stay in place AT ALL. Impossible to have sex with it

I don’t think they’ll accept exchange or something for a smaller size like i should’ve gotten Small or something 😭 do you guys have any DIY tips to make this harness work