Kristen Stewart is selling off the sheer dress she wore at the premiere for The Twilight Saga: Breaking Dawn - Part 2 to a CharityBuzz auction benefitting the Robin Hood Foundation's Sandy Relief Fund, which provides long-term support to those affected by the storm.

The current high bid on the celebrity garment - which has an estimated value of $7,500 - is $3,750, but fashion fans/philanthropist/film memorabilia geeks have until Thursday, December 20th at 4:13pm EST to best the offer. Tara Swennen - stylist for KStew since 2007 - spoke to The Cut recently about life as her personal fashion assistant, and what it's like to dress the On The Road star. "I'm able to get such beautiful pieces for her. There are certain silhouettes she still just gravitates toward and others that, like with any client, you have to push a little bit to take them out of their comfort zone," she explained.  

"But she's willing to try it on just for me, just so I can say, "Listen, this is like Christmas for me when these amazing couture pieces show up in these boxes; you have to try it on so I can see it in the flesh, and then you can take it off." But when she does that, every once in a while, she actually sees something that she hasn't seen before and likes it, and all of a sudden we have something new that she wants to wear, which is super-exciting, so luckily for me, she likes to appease my begging."