Rahul was a college student. His family consisted of his father, mother and an elder sister. When this incident occurred, Rahul was about 19 years old and his sister Ruchi was 25. Ruchi was quite outgoing, liberal and modern in her thinking and attire. Ruchi has a nice, long face, clear skin, milky white complexion and didn't usually wear much makeup. She had married a man twenty years elder to her, much against the vehement wishes of the family. However, the marriage lasted only for a couple of years and soon Ruchi came back to stay with her family. Ruchi was not slim and had fat in the right places.
They lived in an independent building with a large garden in the front. The ground floor consisted of a room, which was occupied by the parents, kitchen and a Hall. The first floor had two bedrooms, each occupied by Rahul & Ruchi. It was May, the beginning of summer and the temperatures were through the roof. However, only Rahul's room had an Air conditioner. As the temperatures rose, Ruchi decided to talk to Rahul.
"Well Rahul, since only your room has an A/C, I hope you don't mind me sleeping in this Room! Besides, you can hug me and sleep like we used to when you were a kid!" Ruchi tried to sweettalk Rahul into allowing her to sleep in the room.
"Didi... I..." Rahul tried to dissuade Ruchi from sharing the room.
"I'm older now. It's really hot here, even with A/C at night. So, at night, you know... I usually sleep in my underwear. I don't know if you would like that if I wore an underwear to bed and slept with you."
"Oh." For a moment Ruchi's face fell, and Rahul was delighted. Then she brightened up.
"Its OK. No problem. You can wear an underwear to bed." She said, and then grinned. "After all, it's unlikely to be much smaller than the shorts you are wearing now, little brother!"
Rahul actually blushed. That night passed away uneventfully. The next morning, Rahul woke up late and straight went to the bathroom but found it occupied. As he stood wondering as to who was occupying his bathroom, the door opened.
"Oh, Rahul, it's you!" Ruchi gushed, stepping out.
Rahul looked at his sister. Her hair was still wet, seductively clinging to her neck and shoulders. She had just put on her salwar, and was wearing a bra, but her Kamiz was in her hand. Her bra covered half of her big cleavage, but Rahul could still see ample amounts of her boobs, even as he tried to avert his eyes. And of course her waist, tummy, navel, back was completely bare.
"Oh, Didi." Rahul didn't know what to say. "Maybe I can wait outside."
"Nonsense!" Ruchi beamed.
Ruchi went and sat on the stool in front of the dressing table, brushing her long luscious hair. Rahul took in the sight and stood still. He had assumed that Ruchi was just going to sleep in the room at night, but now it was apparent that she would be sharing the room for all practical purposes. He decided to engage in some conversation.
"Didi, you smell so nice, tell me what perfume is that?" Rahul asked.
"It's a new lavender perfume I tried out.!" Ruchi blushed and said as she wore her Kamiz in front of her brother.
***
That night both lay on the bed, beside each other.
"Rahul, you were always a clingy baby, and even as a teenager, and you used to hug me and hold me close every time until we would fall asleep." Ruchi smiled and spoke.
Rahul was secretly thrilled at the idea of sleeping close to her, even cuddling with her, but was also afraid, because he knew she was just being nice to him for letting her share the room. He was quite hard. He wanted to shag in his room, but couldn't. Nevertheless, despite his apprehensions, Rahul crept closer to Ruchi. She was facing the ceiling and he was lying sideways facing her. She was wearing a nighty and he could clearly see that she was not wearing a bra. Rahul didn't have the courage to lay his hands on her. Seeing him hesitate, Ruchi herself took his hand and placed it on her stomach.
"Don't ever start to feel shy with me, Rahul. You know I love you, and I know you love me back equally. If you want to hug me, just put your arms around me and hug me. And if you want to cuddle me, just cuddle away."
"Er... of course, Didi."
Ruchi had just given Rahul license, carte blanche, to have my fun with her. Ruchi started to talk about mundane things and Rahul barely heard her as he was busy elsewhere. The tip of his forefinger danced around her navel as he watched her tummy rise and fall with her breathing.
Rahul's mind was racing, and he wanted to touch her huge boobs, which were so close to his hand. He was watching her big boobs rise and fall as she talked. His dick was raging hard, but he let it suffer. He didn't want her to see that placing his hands on her body was making him hard and excited. He thought that once she is asleep, he might be able to caress her boobs slightly, or her ass.
It was pure torture for his dick, as Ruchi placed her head on his right forearm. She faced away from him, so Rahul pressed against her back, his hard manhood pressing against her bum. She took his left hand and placed it on her waist. They were now spooning. Her bum rubbed against his dick. Rahul then kissed Ruchi on the nape of her neck, and said Goodnight.
After about ten minutes he could sense her slowly start to doze off. They remained in that position, her back pressed against his chest, his hardness pressed against her bum. His penis kept boring itself deep into the crack of her ass as he continued to kiss her on the back of her neck every so often, and fondle her butt cheek now and then.
Rahul was now absolutely sure that Ruchi Didi was in la-la-land. She was breathing calmly. So he took the courage and slowly slid his hand up to her breasts and cupped her left boob. With his palm now covering her breast, he could feel her boobs go up and down with her breathing. Rahul was thrilled. Then he pressed her left boob very lightly.
"Oh, Ruchi Didi!" Rahul cried out, as his dick rubbed against her ass. He shifted his ass back away from Ruchi, moved his hands to underwear and lowered the waistband until his dick popped out. He then placed his bare dick against his sister's bum.
After that he again pressed her boobs a bit more. He began to move his hips so that his penis rubbed against her buttocks, while his hand was on her boob, slightly squeezing it. Rahul was thus shagging against her ass. Suddenly his penis started to twitch and he started to cum everywhere. When he was done, he looked at the damage.
There was a lot of wetness on his underwear, on his hand, on the bed, and also a big spot on Ruchi's ass. He got up and fetched a hand towel and gently wiped off what he could. After that, he climbed back into bed, spooned his lovely sister, and dozed off to more perverted thoughts of Ruchi Didi. This was just the first day.
***
When Rahul woke up, it was late. Ruchi was nowhere to be seen. He sat up in the bed and yawned. Slowly he started to remember what had happened last night. How he had shagged himself against his Didi's big, bootylicious buttocks. He couldn't believe he had the audacity to ejaculate on her bum.
He wondered if Ruchi had noticed it when she had gotten up. He wondered if she had realized that her sweet, dear, innocent brother had just masturbated on her body while she had been asleep. Rahul gathered his courage and walked down to the dining table, and saw that his favorite breakfast was laid out there.
"Good Morning Rahul" Ruchi said.
He ran up to Ruchi and embraced her in a bear hug. He had breakfast and then left to attend college. That night, Rahul entered the bedroom to sleep. Ruchi was lying down on the bed, dressed in a nighty. She was busy in her phone. When she saw him, she remarkably didn't bat an eyelid. She just took the sight in, glancing at him from top to bottom, her eyes lingering for just a moment on his small underwear. Then she patted on the bed to her side.
"Come on this side, Rahul. You always used to sleep on the right."
