The panty knot.

Binding two ropes to a third seems like an easy task, but the best way to do it ( for the one wearing the knots ) is, in my opinion, this one..

The trick is, that the knot will lay 'on top of' the ropes, thus not digging into the skin - and apart from that, it's easy to untie this knot.

In case you're making bondage pictures I'd recommend using bald photographers - they'll not get their hair into the pictures...

1/ Pull the two ends of rope up over the roes they are going to be tied to, and then down, on the inside of the ropes they are going to be bound to..

2/ Now bind the ropes together, with a reefers knot, 'on top of' themselves.