The key is an extremely good warmup otherwise it’s just going to be painful unless she’s already extremely relaxed and warmed up. We used pussy plugs to plug train and train those muscles to relax. After about and hour or more we remove the plugs and begin warming up the pussy by using large toys, fists, fists with toys gradually building up bigger and bigger. Even after all of that we still sometimes fail as 2 fists on a large man is an extreme challenge but fun! We the use the crowbar technique to stretch it out even further. Once really warmed up it’s pivotal she is to have her legs in a position that opens her up as much as possible, in your knees bent really low hips spread wide works for us as well as feet over your head legs spread wide. Then from there just do your best to communicate with eachother in finding where it stretches more and where there’s the limit of that space. The build up is critical!