You really want to check out the Nice Tits Pics collection.
Finished up the 2nd season of the wire a couple nights ago and the Ben Affleck wanna be dock worker's girlfriend had one of the nicest natural racks I've ever seen.
Take the running ends over her shoulders, on either side of her neck, and bring them down between her breasts.
They were not the biggest but they had just a perfect shape for her frame.
Tie a knot between her breasts, then take the loose ends around behind her, under the breasts.
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In this type, you need a 30 foot rope and soft braided type.
The breast will be accentuated and surrounded by the ropes, but no pressure is applied.