It was clear Ruthie wasn't happy with the awkward position she was bound in. So if she was going to complain, I would give her a reason to do so. A single rope is all it takes to go from awkward to very uncomfortable in a matter of seconds. Tight crotch ropes tend to have that effect. At least I'm kind enough to dangle the magic wand in just the right spot. Now it's a matter of choice. Succum to the vibrating pleasure and let her legs go weak or hold herself up to keep pressure off the crotchrope. I'm sure Ruthie will figure it out.