John was a handsome, well-built, twenty-year-old college student. When he got home for the summer, his parents informed him that they were going on a month-long European vacation, and he was going to be responsible for supervising his fourteen-year-old step-sister, April. April wasn’t home when his parents informed him of their plans and his responsibilities. When he was home the previous summer, April was a skinny girl who barely had small bumps on her chest. He hadn’t been home since then. John was angry at his parents for saddling him with supervising her because it cut into his party time with his buddies.

When April came home for supper, John was blown away. April was now a beautiful young lady. Her hips had flared, she now had full B cup breasts, and she maintained her tiny waist.

She ran to him and hugged him when she saw John, crushing her bra-encased tits against his chest.

She stepped back and said, “Welcome home, bro. Long time no see.”

“You’ve grown up since I was home last summer, April. You look fantastic,” he complimented her.

“I’m so glad Mom and Dad is leaving you in charge. I need some help with some stuff,” she stated.

“What kind of help?” he queried.

“Nothing that can’t wait until the folks are gone,” she replied.

During supper, the conversation around the table focused primarily on John’s college experience. His father asked about his coursework. His mother wanted to know about his living conditions and if he got enough food in the cafeteria. April asked about his dating situation and if he was in a relationship. After John answered all their questions, his Dad told him they were leaving on their vacation two days later.

When the time came, John drove his parents to the airport, two hours away. There were hugs all-around at the airport, and the kids wished their parents an enjoyable vacation. April rode along to keep John company on the drive home.

On the drive home, April was very quiet. John decided to find out why she was that way.

“A penny for your thoughts,” John said.

“I was just thinking,” April replied.

“About what?” he queried.

“About how to ask you for the help I need,” she replied.

“April, I’m here for you. Just spit it out. Don’t over-complicate things,” John stated.

April blushed beet red, then said, “Would you teach me about sex, bro?”

“I thought you already had a sex-ed class,” he opined.

“Bro, that’s not what I’m asking about. I want to learn how to do it,” she explained.

Shocked by her revelation, John stated, “I don’t know, Sis, you’re a bit young.”

“Please John. All my girlfriends are already having sex with their boyfriends. I feel left out when they talk about it,” she whined.

“Okay April, over the next two weeks I’ll teach you everything I know about sex,” he conceded.

April immediately brightened up and said, “Really?”

“Yes April, I really will,” he responded as his cock got hard.

“Are we going to ‘go all the way’?” she asked.

“Only if you want to, Sis,” he stated, leaving the decision to her.

They were both lost in thought for the balance of the trip home.

April was thinking, “My hunk of a bro is going to teach me all about having sex. I’m so excited my panties are soaked.”

John thought, “I hope I get to fuck my sexy step-sister.”

When they arrived home, April went to her bedroom, changed out of her soaked panties, and joined John in the kitchen. She was anxious to get her lessons started, but John told her there was no rush and that they should eat and drink something first. April made them sandwiches, and John got two bottles of Gatorade out of the refrigerator, so they were well hydrated. They ate and drank without talking. When they finished, April cleaned up the kitchen.

When she finished cleaning up, she asked, “What do I do first?”

John replied, “First, we go to Mom and Dad’s room.”

When they entered their parent’s room, John asked, “How much kissing have you done?”

“Not much, bro.,” April admitted.

“Okay, give me a kiss like you’d give a boyfriend,” John requested.

April placed her hands behind her back and pressed her lips against his. John realized that he had a lot of work to do.

“Sis, you might kiss Dad like that, but not a boyfriend. Let me demonstrate how you should kiss,” he suggested.

He wrapped his arms around her and gave her a passionate kiss, his tongue probing against her lips. She didn’t open her mouth to allow his tongue to enter.

He broke the kiss, then said, “When you feel a tongue on your lips, open your mouth slightly. Let’s try again.”

John wrapped his arms around her again and kissed her. This time, she opened up for his probing tongue. Excited, she stuck her tongue into his mouth, and he sucked on it. The kiss seemed to last forever to April. When they finally broke the kiss, she was breathing hard.

“Wow,” she exclaimed.

“That was much better, April,” he stated.

“Can we kiss again, Bro? I liked that a lot,” she asked.

Once more, he took his step-sister in his arms, and they kissed. As they did, she ground her pubic bone against his leg. She was breathing hard when they broke the kiss.

John thought, “I wonder if she masturbates.”

“Sis, can I ask you a very personal question?” he asked.

“Sure Bro, ask away,” she responded.

John bluntly asked, “Do you masturbate?”

“Bro, that really was a very personal question, but I’ll tell you. Yes, I do. Once, sometimes twice, a day.”

“I thought so by the way you ground your pubic bone against my leg during that last kiss. April, the rest of today’s lessons involve us both being naked. Are you okay with that?” he asked.

“Bro, I’ve never been naked with a guy before so if I’m slow getting undressed, please be patient with me,” she requested.

“Take your time, Sis. Maybe you should get comfortable wearing just a bra and panties in front of me first.” John suggested.

“No Bro, if I’m going to be naked with you, I’m gonna do it all at once,” she replied.

John went ahead and stripped while waiting for April to disrobe. Slowly, she took off her blouse, then reached behind her and unclasped her bra, letting the straps slide down her arms and the bra fell to the floor.

John was rock hard as he saw her bare tits.

April then unbuttoned her skirt and let it join her bra on the floor. She stood there, posing, before hooking her thumbs in the waistband of her panties and lowering them to the point that they slid down her legs to the floor.

She did a pirouette before she said, “Now you’ve seen all of me.”

John walked to where she stood, took her in his arms, and kissed her. His rock-hard cock was pressed against her belly. As the kiss got passionate, she started humping his leg.

When they broke the kiss, John’s leg was wet. All he said was, “Get on the bed.”

Alice promptly complied, and John joined her. He explained, “You’re going to have to teach any guy you’re with, how to make you feel good. Let’s start with you teaching me. You should guide my hand to those places that excite you.”

She took John’s hand and guided it to her pussy. She used his fingers to lightly stroke her folds before moving them to her clit and circling it. She moaned the whole time. She then told John to use his other hand to pinch her nipples. He continued playing with her pussy while pinching, pulling on, and twisting her nipples.

“Don’t stop, I’m almost there,” she moaned.

John continued his ministrations until April’s body arched as her orgasm peaked. He pulled her into his arms and cuddled her until she came down from her orgasmic high.

“Thank you, bro. That was the best cum I’ve ever had,” April stated.

“You’re welcome, Sis. You did a great job teaching me how to make you feel good using my hands and fingers,” he stated, “Now teach me to make you feel good using my mouth. Spread your legs wide, Sis.”

Alice complied, and John got in position. He licked at her folds, then at her clit.

“Yes bro! More like that.” Alice yelled.

John continued licking her folds and clit until he could tell she was close, then sucked hard on her clit. Alice’s orgasm exploded through her, and her entire body shook.

“Oh My God, how did you do that?” she asked after recovering.

“Sis, when I knew you were close, I sucked hard on your clit,” he replied.

“I’ll have to remember to teach that to my future boyfriends,” she stated.

“Was that the first time having your pussy eaten?” John asked.

“Yes it was, Bro. It’s so much better than fingers,” she replied.

“Okay Sis, let’s take a break then I’ll teach you how to keep your guy happy,” he suggested.

They got off the bed and went to the kitchen, where they each drank a bottle of Gatorade. John and April chatted about their lives in general before returning to their parent’s bedroom.

“Okay, Sis, are you ready to continue?

“What’s next, Bro?”

“Next you’re going to learn how to jack a guy off, Sis,” he stated.

“What do I need to do?” she asked.

“Wrap your hand around my cock,” he said.

“Like this?” she asked as her hand was loosely wrapped around his cock.

“Grab it tighter, Sis,” John told her.

April tightened her grip.

“Perfect, Sis. Now, move your hand up and down my cock,” he directed.

After a bit, he said, “I’m getting close Sis, don’t stop.”

Soon, he was shooting cum all over April’s chest.

“Yes Sis!” he yelled as he came.

When he stopped shooting his cum, he said, “Okay Sis, stop pumping, I’m too sensitive now.”

April wiped a drop of cum from the tip of his cock with her finger and tasted it.

“Not bad. A little salty but not bad tasting,” April said.

“So what now?” she asked.

“We can just lay here and cuddle Sis. I like cuddling with you,” he suggested.

“Do you really like cuddling with me Bro? I’m so much younger than you,” she questioned.