"Emily get down here!" Shouted Megan, "we're not going to a wedding, we're just fucking."
Emily looked towards the bathroom door, "one more minute!" She shouted back to her sister. She had to get ready for this. She studied herself. Her F cup tits almost spilled out of the tank top she was in, her equally large ass sat comfortably in the sweatpants she wore, and her dark hair flowed down past her shoulders. She took a deep breath, it was time to fuck her sister. Or rather, it was time for her sister to fuck her. Megan was into bondage, one of her ex's got her started and she could never stop. But today, Megan would be the one to tie up Emily. Emily stepped out of their bathroom and started down the hallway. She opened the door to the basement and started down the stairs, carefully closing the door behind her. She was greeted by her empty basement. It was finished, with painted walls and carpet, but neither sister really had any use for it. The storage room in the back provided more than enough space for all their stuff, so they only had a couch and a TV down here. But there was also something else in the basement, Megan.
She had already taken the liberty of stripping naked and was sitting on the couch. When she spotted her sister she power walked over to her. Megan reached for her sister's tank top, "take it off, come on," she said. Emily grabbed her sister's hands. Megan rolled her eyes and smiled, "it's not like we haven't seen each other naked before," she pointed out. Megan was right, so Emily lifted her tank top and bra off before moving on to her sweatpants. She slid them off and let them fall to the floor. The two girls embraced, their tits pressing together. Despite being the younger sister, Emily had the bigger tits. Megan's D's were impressive, but Emily won the gene lottery in that regard.
Megan broke their hug, "should we start off slow?" She asked her sister. Emily nodded and Megan laughed, "pee it is then," she declared.
Emily was thrown off, "pee?" She asked.
"Pee," Megan repeated. She started over to the far side of the basement where the closet was. Megan entered it and pulled out a series of ropes and a small box. "Have you ever done anything with pee before?" Megan asked.
"No," answered Emily.
Megan looked over at her, "but you want to?" She asked.
Emily recoiled, Megan was right of course but it was still a shock that she knew, "well, yes," said Emily.
Megan smiled and started untangling the rope, "I'll tie each other in a sixty nine position," she held out the box, "here is a timer, after thirty minutes it will open and we'll be able to cut ourselves loose with the pair of scissors inside."
Emily nodded along, "what if I don't have to pee," she asked.
Megan pointed to the bathroom on the other side of the basement, "in there you'll find a couple one gallon jugs of water, one for me and one for you, bring them out here and start drinking," she told her. Emily did as she was told, walking into the bathroom and finding the jugs before bringing them back out. They looked exactly like milk jugs, but filled with water of course. It was a lot of water, maybe a little too much. Megan carefully laid out the ropes on the ground. She picked up one and started tying it to her own ankles, effectively creating cuffs made of rope around them with a length of rope running out of them. She then did the same to her wrists, although she struggled with this. While her sister was struggling, Emily opened up her jug and started sipping. The water went down easy at first, but it quickly became difficult to get down. Megan finished with her ropes before moving on to her sister. She bent over and tied her ankles, before standing up and tying her wrists as well. Both sisters had their wrists free, but with rope around them. Megan then tied a rope around their stomach, before doing the same to her sister. The jug was waiting for her, so she started to drink her own water.
After a few minutes of struggling, the sisters had emptied their jugs and were ready to be bound. Megan led them over to a carpeted part of the floor that she had picked out for them. It had four small U-clamps evenly spaced along the ground. These clamps were small pieces of metal that looked like upside down U's. "You'll be on bottom, lay down," Megan told Emily. Emily first sat on the ground before laying back and facing up towards the ceiling. Megan stepped one leg over her and faced towards her feet. She joined her sister on the floor a few seconds later, her crotch right over her sister's face. She started by tying her own ankle to Emily's wrist, and then her other ankle to Emily's other wrist. It took some contorting, but Megan eventually then managed to tie both ankles and wrist to ttwo of the U-clamps. This spread out Emily's arms above her head and spread Megan's legs out so that neither girls could move them. Megan moved the box towards one of the clamps in front of her. She leaned forward and took Emily's legs with her. She first tied their stomachs and chests together. She did the same thing but in reverse, with her own wrists tied to Emily's ankles. The second tie was tough with only one hand, but she managed to do it. The two sisters were now tied together. Emily laid spread eagle on the ground, unable to move her arms or legs. Megan laid on top of her, but facing towards the ground. The two girls were now inseparable, both of their faces were right on top, or below, the others pussy. It was perfect.
