Tourguide came up with a neat little contraption amde from a couple of choke chains and a couple lengths of rope (or maybe just one long piece, I cannot remember) Basically it was a harness.

The choke chains were used as a bit while the rope was attached dso that not only were my breasts bound but also so it had reins of a sort. Not only were they good for leading but also work for when we were having sex from behind, that way he could simply just pull me back into him and not have to expend a whole lot of effort. LOL