"Deal. If its weird we stop." Jen was stunned. At herself for suggesting it, at Ally for going for it. Something about it got her blood pumping extra hard. She knew that though she promised to imagine another mouth was on her, she wouldn't be. She'd savor it. Never had she thought of Ally this way before, and she was shocked by the fact that she didn't think it was beyond disgusting.
"Ok." Ally crawled over to Jen's chair. She kneeled in front of her. Jen slipped off her panties but kept her legs together. They sat there for a moment, as if gauging whether the other would really do it. Jen scooted her butt to the edge of the chair. Ally still didn't move.
"Ready?" Jen asked nervously. Suddenly she wasn't sure which was worse, going through with it or not. At this point if they turned back they would talk for a week at least. Her knees opened just a bit, but her upper thighs still kept her prize hidden from Ally's eyes, which looked like they were trying to burn holes through her legs in order to get a look.
"Ready." Ally's voice was shaky. She had never been more nervous, but also strangely comfortable. She and Jen shared everything, why not this? She never felt more at ease around anyone. Jen let her legs fall open slowly. When her thighs revealed her sex to Ally the deal was sealed. Neither would be turning back now. Ally's eyes grew wide as she saw it. Perfect and pink, a little hair as Jen had no reason to suspect she'd be getting any action, but Ally didn't mind. The lips were small, just like Ally liked them. They dripped with arousal. Jen's entire mound was glistening with wetness, and her inner thighs were damp from having her legs together. Ally had never imagined a pussy could be so wet, and she had to taste it.
Ally stopped herself from diving right in. She knew how to take best advantage of this. Her sister was so horny the lightest touch could make her cum, and so Ally built up slowly. She kissed the inside of Jen's knee. Slowly she made her way up the soft thigh. Jen's breath came heavy and slow, getting heavier as Ally got closer. Just when she thought she'd get some relief she felt Ally's lips on her other knee. She let out a plaintive whine, which turned into a soft moan as the lips made their way up again.
Ally loved the feel of Jen's soft thighs. She began to trace the fingers of her right hand along Jen's leg, her lips handling the other. She felt her panties starting to soak through as she listened to her twin sister's soft sighs of pleasure and quiet moans. She'd never a sweeter sound. Sweeter, or more erotic. As she came again to the crease where Jen's thigh met her hip, she began to kiss up and around. All over her hips, across the bottom of her tummy, over to the other hip. She came down slowly, kissing and lightly licking the skin all around those beautiful wet lips. She tasted a bit of the salty wetness on Jen's thigh, and craved to taste more, but held out.
Jen let out sighs and moans that changed from frustration to pleasure by the second. Ally was teasing her and she knew it. Jen hated being teased, but she also loved it. She let it happen because she knew the tease would make the end result even more amazing. She worried a little, she'd never felt so turned on in her whole life. She was afraid she might like it too much, and of what that might do to them. She was worried the intensity of her orgasm might give it away, and Ally would be upset. Suddenly she jumped, letting out a little squeal as she felt a warm tongue flick across her lower lips. Her body tensed and she had no control, brought to the very brink of orgasm by that light touch, but Ally had returned to the skin around it and she came down. She couldn't help but smile when she thought of how amazing it was turning out to be.
Ally didn't want to resist anymore. The quick taste of her sister's pussy was the most delicious thing she'd ever imagined. She let the tease hang for a moment while Jen's body relaxed, then she came back to it. Jen let out a loud groaning shout as Ally's tongue met her clit and began to work it. Her hips came up off the chair, every muscle in her body tensed and shuddered. Her legs shook as she felt her pussy squeeze tight. She felt a warm gush of liquid squirt from between her legs, felt it dripping down her thighs. She looked down at Ally, who took her face out for just a moment. That perfect, beautiful face, just like her own. Only this was was drenched. Her squirt dripped from Ally's chin, across her impressive cleavage. Wet strands of hair dangled in her face. She gave Jen a delighted smile before burying her face back in.
Jen was brought to orgasm after orgasm. She had never cum so many times in a row. Every time she thought she'd stopped another one rushed up through her body. Ally was thoroughly soaked by the third. A puddle had formed on the floor by the sixth. At eleven Jen had to make her stop. Her whole body sore from the powerful orgasms. Ally looked up in satisfaction.
"Now if you don't mind, dear sister," she said with a lighthearted tone, " I need to go uh, take care of something." She made to leave for her room.
Jen couldn't summon the energy to stop her. After a minute or two, Jen stood and walked down the hall. She had to support herself on the wall her legs were so weak. Even so, she had to see Ally again. The deal may have been to let Ally eat her out, but after that there was no way she wasn't going to return the favor. She stopped at Ally's door, heard soft moans from within. She raised her hand, knocked, and walked in.
