We curse the strength of bra straps and their otherworldly ability to hold up such massive, mountainous mammories in motion. It's one of the easiest ways to tell if a female's boobs are real are not that doesn't involve a lawsuit! That's right, just watching a vixen's chest bounce around can be a memorizing and tranquil experience.

Make sure you keep an eye out for Hitomi Tanaka, who was a former GuySpeed Babe of the Day and broke the top five in our list of the 10 Hottest Japanese Porn Stars of 2014. Watching this gravity in motion is so much better than hearing Sandra Bullock whine for two hours, so watch as these Sexiest Bra-Bouncing GIFs Ever show how floating into space is really supposed to be done.