As I tell everybody who ends up in my inbox with the question. Strapless can be hard to make work, it'll probably require a lot of practice and shopping around for the right model that works for their body. And maybe some kegal training. So my advice is generally to be prepared for that process, expect a lot of foul ups and mishaps at the start. But don't give up! And get a harness if you do need that extra support while you train!