Helen got into the shower on Christmas morning. She let the water cascade down her body. Her hands cupped her 36D breasts, gently pinching her nipples, then with one hand, she held a bar of soap and began to lather them. The other she had between her thighs, her fingers tracing up her wet slit. Her thoughts turned to Mike instead of Ray. She had felt his stiff cock just moments earlier. Her fingers slipped inside her waiting pussy. She wanted to feel Mike's cock deep inside, but he was still her brother. She quickly brought herself to her climax, leaning back against the shower wall.
She finished her shower and shouted to Mike it was free as she returned to her bedroom, where Ray, her boyfriend, was.
The rest of Christmas was spent with the family at Helen and Mike's parent's house.
At Easter, Helen announced that she was pregnant. Helen's mother, Betty, who was a teacher at a local school, went into organizing mode. She arranged everything for a short-notice wedding, inviting various members of the family and Helen's friends.
It was a small gathering in May when Helen and Ray tied the knot. During the evening, Mike talked to Helen's friends, including Jackie. Since Christmas Eve, Mike and Jackie had seen each other only a few times, as Mike was still studying hard for exams in the summer, and Jackie was working. Helen pulled Mike onto the dance floor for a slow dance. Her arms around his neck, she pulled him close.
"Mike, I love you," she whispered in his ear.
"I know you do. You are my sister," he replied.
"No, Mike, I mean, I actually love you. I really want you. I want to have you."
"Helen," he said, "I think you have too much wine. Let's talk another time."
The music changed, and they both walked off the floor, hand in hand. Helen kissed Mike as they returned to their seats.
She sat down with Ray. Mike could see tears forming in Helen's eyes. But he said nothing. He was just about to sit down when Jackie and another couple of girls dragged him back on the dance floor. He spent the rest of the night dancing with them. His mind kept wandering to the sister, and did she mean what she had said? After all, she was his sister.
During the summer, Mike sat his exams and went on vacation with his best friend Richard while waiting for the results. Richard, like Mike, both played sports. Richard was a good golfer, whereas Mike played Field Hockey. They were both eighteen and fit. They went to a beach resort and enjoyed the first couple of days relaxing and exploring the local bars at night. The two eighteen-year-olds were both sensible and did not drink too excessively. As they walked back to the hotel, they watched as a lot of other people were too drunk to walk and stand up.
On the third day of the vacation, they were sitting on a wall at the back of the beach when a couple of girls approached them. They had seen them before while at the beach. They introduced themselves as Sarah and Clare. They chatted for a while and found they were going to University in Autumn if they got the results. Sarah asked them if they fancied going to the nudist beach about 30 minutes away in a taxi. Mike and Richard looked at each other.
"Why not," said Richard, "Will be a bit of a laugh."
They were dropped off by the taxi at the gates to the beach. They went in and were guided to changing rooms where they could leave their belongings. Sarah and Clare emerged from the building. Mike did his utmost to keep his cock from becoming hard as he looked at Sarah and Clare.
Sarah had long dark hair that almost covered her firm 36B breasts. She was slightly curvier than Clare and had thicker thighs, between which was her perfectly smooth pussy. Mike quickly closed the gap between them, his cock swinging as he walked towards them. The girls giggled at the sight. The four of them walked to the beach. Mike was the first in the water, going in up to his chest to hide his growing cock. Sarah soon joined him.
The pair of them started splashing each other in the warm water, and Mike pushed water at Clare, his hands ending up on her breasts.
"That's not fair," she said and quickly put her hand under the water to grab Mike's cock. They both leaned forward and kissed each other.
They looked back at the beach and scanned it for Richard and Clare. They found them both lying face down on their towels.
"Come on, let's go to the back of the beach."
Mike and Sarah grabbed their towels and went to a deserted part of the beach. Before they had even got there, Sarah had her hand wrapped around Mike's stiff cock. He threw his towel on the floor. Sarah dropped to her knees, taking Mike's salty cock into her mouth. Her tongue licked around the head, then licked the tip, before sucking him deep into her mouth. Mike pulled back and laid on the towels. Sarah straddled him, her smooth pussy close to Mike's tongue as she held Mike's cock once more. Mike tasted the salt water on Sarah's pussy, then the taste of her juices as his tongue started to go in and out of her pussy lips. Sarah moved her hips back and forth across Mike's face as he licked her deeper.
Sarah got up, turned around, and held Mike's cock as she lowered herself down, feeling his cock stretching her pussy, her lips clenching on his hard cock, until she had taken him in fully.
"Oh fuck, Mike."
She started to go up and down slowly, and Mike began to lift his hips. He felt her pussy gripping his cock with each movement. Mike's hands held Sarah's ample ass cheeks as she put her hands on his chest, her hips going up and down faster.
"Fuck me, Mike, fuck me," she moaned.
Sarah leaned down more as Mike lifted his head to lick her nipples as she rode his cock.
"I'm cumming," Mike exclaimed.
"So am I," Sarah replied as her pussy clamped tight on Mike's cock.
Mike felt his cock twitching and sending spurts of thick cum deep into Sarah. Sarah moaned with a guttural sound as her own orgasm hit her. Her legs shook as she collapsed on top of Mike. They both just lay in the same position while they felt their bodies recover. Cum leaked from Sarah's pussy as Mike's limp cock slipped out.
They were both unaware that Richard and Clare had walked past while they were fucking and were startled when they appeared. Looking up at the pair, they had been doing the same. Clare's pussy was red and swollen. They spent the rest of the vacation together. Sarah moved into Mike's hotel room.