In her new solo video, "SIenna Lopez: Big Tits Tour HD" San Antonio actress Sienna Lopez gives a few glimpses into her life and what exactly being a "big ass" is all about. In the video, Lopez can be seen getting spit on in a store. The other videos she's made with Big Tits Tours, such as "Pump me up," "Pussy Power," and "Reckless," are also funny as the girls go around making fools out of each other. It's kind of an amazing thing that the little known Sienna Lopez has become a pop star and Hollywood favorite because of her big breasts and unique personality. Hopefully, the "Big Tits Tour" and" SIenna Lopez: Big Ass Tour" will continue to entertain and her fans with even more of her crazy ass behavior!.