For the grandparents' fiftieth wedding anniversary, the rest of the family traveled to celebrate with them for a long weekend. Heather and Brad's parents booked two rooms at the hotel – one for the parents and one for the kids. Heather was 19 and just finished her first year of college. Brad had just turned 18 and graduated from high school.
After checking in, they realized that both rooms contained just one queen size bed. The front desk told them that the hotel was fully booked and no other rooms were available. The brother and sister decided to make the best of it.
At the end of the day, everyone retired to their hotel rooms. Brad watched tv for a little while as Heather read a magazine, and then Brad shut off the tv to announce he was going to sleep. He disappeared to the bathroom to brush his teeth and then returned and warned his sister, "I hope you don't mind, but I normally just sleep in my boxers."
"It's okay," she said. "I remember when you used to run around in your Spiderman underwear."
"I forgot about those," he said.
"You used to pull them down and say that your little penis could make spider webs. Do you remember that?" she asked
Brad shook his head. "Yep, I do."
Heather giggled. "Remember when I had a sleepover and you did that in front of my friends? Becky Haggert kept laughing about how small it was and talked about it for weeks after."
"It's gotten bigger since then."
"I should hope so."
Heather turned back to her magazine and Brad began to get undressed. From out of the corner of her eye, she caught a glimpse of her brother's shirtless body. He's been working out, she thought. If he wasn't my brother and I just saw him on the beach, she continued, I'd think he was kind of hot. Heather suddenly realized what she'd been thinking and pushed those thoughts out of her head. She continued to look surreptitiously at him, however, while pretending to read her magazine.
His pants were off and he was standing there in only his boxer shorts. She glanced at his crotch as though she could make out the outline of his cock through the fabric of his shorts. As he began to walk toward the bed, the fly of his underwear parted and she was able to catch a glimpse of part of his dick. She looked away quickly, her heat beating with a mix of shame and excitement.
Brad was in bed and pulled the blankets over him. Heather announced she was going to get ready for bed too. She took her nightie from her suitcase and went into the bathroom. The length of the nightie stopped slightly above her knees. She planned on wearing panties with it, but found herself feeling braver. She began to get undressed.
From Brad's position in the bed, he noticed that through the angles of the mirrors in the hotel room, he had a great vantage point to see a reflection of what was going on in the bathroom. Heather, thinking she had enough privacy as it was, didn't bother to close the bathroom door and was completely unaware that she was getting naked in front of her brother. Brad tried to look away, but she removed her bra and he was unable to do anything else but look. Her A-cup breasts were perky and her nipples were erect. She pulled off her panties, revealing a dark bush. Brad's cock stiffened. He wanted to look away. He wanted his erection to go down. He knew that he shouldn't look at his sister that way. He forced himself to turn on his side, away from the mirrors and concealing his hard on.
Heather emerged from the bathroom with her nipples poking through the fabric of her nightie. She walked across the room with her dirty clothes and bent over to put them in a laundry bag. She was once again in Brad's line of vision, and he lay there looking at her ass and watching how the nightie rode up to expose some of her thighs. His hard on throbbed. Heather got into bed. They said goodnight to each other and she shut off the light.
Brad was having a sexy dream and his penis felt good. When he opened his eyes, it was morning and he was spooning his sister. His stiff cock was sticking out through the fly of his boxers and was pressed between Heather's ass cheeks. Her nightie was bunched up around her stomach and his arm was draped over her with his hand underneath the nightie and fondling one of her breasts. Her nipples were erect. She was grinding her ass against his cock and he was grinding himself back against her.
He knew he should stop, he thought, but he was too turned on. Besides, she was grinding herself against him. He tried not to think that she was his sister. He just focused instead on the nearly naked girl pressed against him, grinding her ass against his cock and letting him feel up her perky tit. He decided it was best to keep at it, all the while pretending to still be asleep, so in case she did wake up, he could claim to be innocent.
But Heather already woke up. She too had been having a sexy dream and her pussy was wet when she woke up to feel the all too real sensations. She was confused at first, and then briefly horrified when she realized it was her brother who was making her feel this way. She thought about stopping, but she was too horny. Besides, he was the one groping her. She couldn't see his face anyway, so she decided to pretend to be still asleep so she could continue letting him touch her this way.
They continued grinding against each other, enjoying the sensation of his naked cock against her naked ass, his hand massaging her bare breast and nipple. She slowly moved her hand down to stealthily rub her clit. Heather's pussy was dripping wet by now and she began to grind harder against Brad. She spread her legs a little bit and his dick went in closer, rubbing itself between her inner thighs and grazing her outer pussy lips,