She makes a deal with him

She looked at him, and considered her options. She could turn him over to father, but that seemed cruel. He might keep Bran from coming to King's Landing, and she couldn't find it in her heart to do that to her poor brother. She also realized she hadn't finished fingering herself, and saw an opportunity to get some help.

"What you did was very wrong," Sansa scolded, "And I really should tell father."

Bran's eyes brightened. "You're not going to?" He asked, overjoyed at the prospect.

"Here's the deal. As you saw, I really need to, well, to relax," She said, smiling suggestively. "And since you interrupted my relaxation, I think it's only if fair if you helped me, you know, finish relaxing."

"What do you mean?" Bran asked, not sure if he was hearing her correctly.

"Here, let me show you," she said, grinning and dropping her arms. Bran's eyes widened as he stared at her naked flesh, his cock immediately getting hard again. Turning around, Sansa waded back into the water, her butt swaying as she walked. "Won't you join me, little brother," she purred. Bran couldn't tear his clothes off fast enough, leaving them in a pile next to Sansa. He ran to join his sister, who had laid down in the shallows. She positioned herself so she was on her back, her pussy just out of the water.

"Get on all fours," Sansa ordered, spreading her legs. Bran complied, hypnotized by her beautiful pussy. She guided his head between her legs, his face hovering just above her wet cunt. "Now, lick it."

Bran did as he was told, running his tongue from the bottom to the top. Sansa moaned, encouraging him to do it again. While this wasn't exactly how he had imagined his first time with Sana would go, he wasn't complaining. This was a dream come true! After a while, he decided to experiment, diving his tongue into her cunt. She loved it, writhing and moaning under his tongue. She pressed her brother's head into her snatch, surprised by how good he was. Bran kept licking her, his dick getting harder and harder. His nose would brush up against her clit every now and then, sending a wave of pleasure through Sansa.

Finally, Bran decided to suck on her clit, noticing she was sensitive there, and it was too much for the Stark girl to handle. She came, her juices flooding Bran's mouth. He lapped up as much as he could, loving the taste of his sister. Once she was finished, Bran looked up, taking in every detail of her face. Sansa was out of breath, her chest rising up and down. She looked at him with a look of pure lust, and Bran knew he was in heaven.

"Thank you," Sansa gasped, letting Bran stood up, "And don't worry. Your secret is safe with me." Bran was relieved she wasn't going to tell father, but he sought a different kind of relief. Sansa noticed his hard-on and chuckled. "Oh, how could I be so selfish. Come here!" She grabbed his penis softly and led him over to her. Bran followed dutifully, moaning as she began to stroke him, giving him his first handjob. While one hand stroked his dick, the other cradled his balls, something Bran had never tried. After a minute of so, Bran reached his limit and came, shooting his load all over his sister's breasts. She gasped at the sheer volume of semen her brother was unloading. The last few shots landed on Sansa's face, much to her delight. She scooped it all up, bringing it to her lips.

Bran was at a lost for words as he sat down, his strength escaping him. Sansa crawled over and kissed her brother, her tongue exploring his mouth. She could taste herself on his lips, and she loved it. After making out for a while, they washed up together, Sansa cleaning the cum off of her. After they were finished, they dried off and got dressed.

"I'm so glad you're coming to King's Landing with me," Sansa told Bran as the two left the godswood, "I think we're gonna have a lot of fun there." With that, the two parted ways, Sansa leaving to work on her needlework.