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Kristen Stewart & Dakota Fanning hit Austin, TX and SXSW for The Runaways premiere!

Just one night after Kristen Stewart hit at the afterparty of The Runaways at The Bowery Hotel Terrace in NYC, the starlet jetted off to Austin, TX to celebrate the premiere of her film at the South By Southwest Film and Music festival.

K-Stew and Dakota Fanning hit the red carpet and then went to SWAGG cafe, which took over the Moonshine Patio Bar & Grill. “It was a small venue and only about 100 people were there,” one party-goer told HollywoodLife.com EXCLUSIVELY.   Actress Taryn Manning even deejayed at the party!

“The girls were in great spirits,” said another spy. “They were inseparable, even going to the bathroom together!” The source even told us that ONCE AGAIN Kristen changed out of her little leather dress that she donned on the red carpet, and into “jeans, a charcoal gray tee with sleeve rolled up, and black combat boots.”  But Kristen kept her full makeup on “including red lip gloss!”

Dakota changed too, into an all black outfit, skinny jeans, blazer and studded wedge boots. “The two hung in the VIP area by the fire place before leaving to go see K-Stew’s favorite group, Band of Horses, play.

“The party was definitely mellow,” said the first source.  “It seemed like everyone was hanging out together. It was an intimate crowd, and people were pretty much leaving Kristen and Dakota alone. But it was a really fun crowd!”