7 comments/ 127748 views/ 9 favorites Robinson Family Ch. 01 By: siblingspank Alex Robinson slipped quietly into the bathroom and locked the door. He hoped that Melissa hadn't noticed the erection that was forming the tent in his shorts. It wasn't his fault, Alex reasoned with himself. So what if Melissa was his twin sister. Alex didn't cause her to go swimming in her skimpy bathing suit, which so elegantly displayed her beautiful 18 year-old body. Alex had seen Melissa stepping out of the in-ground swimming pool in their family's backyard. He noticed her firm breasts first, covered only by a black swimsuit top. His eyes quickly became fixated on the crotch of her bikini. Alex realized that his virginal sister had to have shaven her intimate hair before she could have put on that bikini. The image that came with that thought began to give Alex an erection. As Melissa came into the house, Mrs. Robinson commented on her daughter's choice of swimsuit. "Melissa sweetie, that's fine for around the house, but don't let me catch you wearing that anywhere else, or that swimsuit will be showing off some toasted buns the next time you put it on." "Yes ma'am." Melissa walked towards her room to get dressed. Mrs. Robinson "toasted buns" remark had been a veiled threat of a spanking. The Robinson family was a very religious family that believed in traditional discipline. Unfortunately for the parents, but fortunate for the two siblings, the child-abuse laws of their state prohibited the spanking of children. It was some bleeding-heart liberal garbage about spanking having similar psychological effects on children as molestation. The Robinson family knew that the Bible was more accurate in the field of psychology than today's quacks with degrees. Of course, the siblings had recently turned 18, and one of the conditions of them being allowed to continue living with their parents was that they would have to submit to whatever punishments were deemed necessary - including spanking. Neither Alex nor Melissa had been spanked yet, but they knew that if either of them were to be unfortunate enough to earn a spanking, it would be a very unpleasant experience. The threat alone ensured their perfect behavior. The thought of Melissa getting spanked did it for Alex. He had a full erection now. He quietly walked towards the bathroom as his sister approached from down the hallway. She seemed to briefly glance downward, but showed no signs that she had noticed anything unusual. Once Alex was safely in the bathroom, he sat down on the toilet and took his cock into his hand. He thought about Melissa sitting in the tub, her legs spread wide, her razor in between her legs. Alex felt a twinge of shame as he started stroking his cock. He shouldn't be masturbating over his sister, but yet that was exactly what he was doing. He closed his eyes and imagined that it was not his hand running up and down his cock, but rather Melissa's small soft hand. Alex heard a faint noise from outside the bathroom door. He made sure to masturbate more slowly so that the sound of his hand sliding on his cock wouldn't be audible from outside of the bathroom. He also made sure not to breath too heavily. The thought of someone, probably Melissa, standing right outside the bathroom door while he masturbated turned Alex on even more. It took some self-control to stifle his orgasmic gasp as his cock erupted. After cleaning up, Alex opened the bathroom door. Just as he suspected, Melissa was casually leaning against the wall beside the bathroom. She smiled at him and then walked away, her bikini-clad buttocks swaying slightly as she walked. Alex was overcome by an awkward embarrassment. He tried to convince himself that Melissa had no idea what he was doing in the bathroom, or if she did, who he was thinking about while doing it. Alex felt the sudden urge to hide out of a sense of shame, so he headed towards his room, which was conveniently located next to his sister's room. It just so happened that Melissa's door was slightly open. Alex stopped to watch Melissa pull the waistband of her jeans up over her white cotton panties that she had just put on. Her back was turned to him, so she didn't know he was there. Melissa then removed her swimsuit top. Alex gazed at her bare back, wishing he could see her front side. Alex had just finished masturbating, so he wasn't getting too sexually aroused by this sight, but it did stir his curiosity. He quickly sidestepped out of the line of sight and walked into his room. Alex sat in his room studying his textbooks. After about an hour, he decided to go to the kitchen to get something to drink. Melissa exited her room at the same time Alex exited his. They immediately made contact and stopped. Melissa smiled at Alex. "Hi there, brother." "Hi." "So, um... thanks for offering to drive me to work next week while my car is in the shop. You're cool like that." "Yeah, well... you are a pretty cool sister." Alex placed a hand on Melissa's shoulder. Melissa awkwardly stepped forward and put an arm around him. Alex put both of his arms around her and hugged her. Alex became suddenly aware of the fact that their bodies were pressed up against each other. Alex could feel Melissa's breasts wedged in between them. He also became aware of how close together their pelvic regions were. He began to panic when he realized he was having another erection. His first reaction was to shift his body weight some and lean more on Melissa, hoping that would help him disguise his problem until it could subside. Melissa laughed. "Hey, I love you too, but I'm losing my balance here. You can stop hugging me." Melissa stepped back with one leg, and moved the other leg slightly forward, so that she could maintain her balance. Her forward thigh lightly bumped into the bulge in Alex's shorts. She quickly glanced down. Alex panicked. He didn't know how Melissa would react. He couldn't read the expression on her face. He didn't know what to do, so he quickly placed one hand on the back of her neck to get her to look up at him. He then leaned forward and softly kissed Melissa on the lips. Alex's eyes widened as he pulled his head back quickly. He wanted to disappear right then. Melissa looked confused. They stared at each other for about two seconds, but it felt like an eternity. Melissa gave an awkward smile, and then she eased his embarrassment somewhat by leaning in and kissing him right back. The siblings looked into each other's eyes. Each of them could tell that the other's heart was racing. They both knew what was about to happen next. Melissa put her hands on Alex's shoulders, and Alex put his hand on Melissa's hips. They pulled each other close, and their lips made contact again. "What are you two doing?" The fraternal twins quickly spun around to see their mother standing down the hallway with a confused expression on her face. She was quickly joined by their father. Mrs. Robinson whispered frantically into her husband's ear. Mr. Robinson spoke up. "Were you two... um... kissing each other?" Alex stumbled on his words. "Uh... uh... we were just playing. We were joking about some of the couples we went to school with who kiss each other in front of everyone, then we just started... practicing, for when we get married. We know you don't want us kissing before marriage." Mrs. Robinson appeared to be on the verge of tears. "No... but... your shorts... you two were actually... enjoying it." Her husband placed an arm around her to comfort her. "You two go wait in your own separate rooms. We will call you out in a few minutes." The thirty minutes that elapsed felt like weeks. Alex's was a nervous wreck. It was him who had kissed Melissa first. It was him who had gotten an erection at the though of seeing her spanked. It was him who paused to watch her change, wishing he could see her breasts. Surely, there must be something wrong with him. After what seemed like an eternity, the twins were called into the family room. Mr. Robinson spoke solemnly. "Your mother and I have been praying about this. You know that any sort of lustful activity outside of marriage is a horrible sin, but we have reached the conclusion that what you two did must not be a horrible sin since you are family by blood. It's not marriage, but it's family. Adam and Eve's children did the same thing. Surely, God foresaw things like this happening in families, and surely he doesn't condemn these expressions of brotherly and sisterly love. I am determined to raise you two the right way, so that you can become godly spouses to your future marriage partners, who God will bring into your lives. I think though, that perhaps we should have prepared you more for the physical side of a relationship. We didn't allow you to take sex ed in junior high because we didn't want you corrupted by that sinful filth. Perhaps we neglected our parental duty to prepare you for this part of life. That is why your mother and I are going to teach you our own sex ed class. We aren't going to punish you two for exploring each other's bodies. Instead, we are going to teach you how to do it." Melissa gasped. "You two aren't going to... you know? That would be gross." "No, Melissa darling. Your mother and I are not going to do that in front of you. Instead, we are just going to teach you how to do these activities with each other. Now, I think it's time we all go into the guest bedroom." Robinson Family Ch. 02 The twins anxiously followed their parents into the guest bedroom. They didn't know what to expect. They both suspected that they were about to become very intimate with each other. They also suspected that this would be an embarrassing encounter. Mr. Robinson closed the door and cleared his throat. "Alex and Melissa. Both of you are going to do exactly as your mother and I say, no matter how embarrassing it might be. For now, I need both of you to take off your clothes. All of them." The twins looked at each other helplessly. Alex slowly pulled off his T-shirt. Melissa looked at Alex for support, and then removed her shirt. Alex stuck his thumbs in the waistband of his basketball shorts. He took a deep breath, and then dropped his shorts to the floor and stepped out of them. He suddenly felt vulnerable. He needed his sister's support. He nodded to Melissa, who was shaking with nervousness as she unsnapped her jeans. She pushed her jeans down her legs and stepped out of them. Alex stepped closer to Melissa. The twins knew what they were expected to do next, but neither wanted to do it. They looked imploringly at their parents, but Mrs. Robinson only nodded in support of her husband. Alex became painfully aware of the erection that had involuntarily formed, and that was now pushing his briefs outward. He decided that he might as well get the embarrassment over with. Alex quickly jerked his underwear to the floor and kicked them off his ankle. He stood there with his cock fully erect. Melissa gazed at his cock in amazement. It took all of her considerable self-restraint not to smile. Alex noticed his parents looking at it too. Suddenly, his self-confidence vanished. He felt much more comfortable with his sister seeing him naked than his parents. He stepped back and stood behind Melissa. Mrs. Robinson shook her head disapprovingly. "Don't even try to hide. We all saw your erection. Now come out from behind your sister and walk over to me. Melissa, stop standing there and get your bra and panties off right now." Alex thought he was going to die as he walked right up to his mother. Alex gasped as Mrs. Robinson's right hand grabbed his erect cock around the shaft. "Yes, I know this feels good, Alex. Your sister is going to make it feel even better. I am going to teach you how to use this to make your sister feel good too. That is, if your sister will quit playing shy and get naked this instant! Alex dear, you have a really wonderful penis. It's been a long time since I have seen it. It's so young and firm. You are going to make your sister so happy. Melissa! Stop wasting time. You are going to get naked. We can do this the easy way, or the hard way." Mr. Robinson stepped in front of his daughter and spoke sternly. "Melissa, I know this is embarrassing for you, but you need to accept the fact that you are going to have to obey us as long as you live in this house. Now, answer me honestly. Do you want to be taught how to do these intimate activities with your brother?" "Yes, sir. It's just really embarrassing." "I know, but your brother is naked, so you won't be too embarrassed. Go ahead and strip. You need to obey me in this matter." Melissa just shook her head. "Melissa, now that you are 18, your disobedience will be punished the Christian way. I am going to spank you for disobeying us. If you obey us right now, then your punishment will be much lighter." Mr. Robinson pulled a chair out from under his desk in the corner and sat down. He watched as Melissa unfastened her bra and let it fall to the floor, exposing her B cup breasts. Mrs. Robinson released Alex's cock. Alex's disappointment was mitigated when he turned to watch Melissa. Alex thought that they were the most beautiful breasts he had ever laid eyes on, and he had laid eyes on quite a few breasts whenever he was alone with his laptop. They simply exuded perkiness. Alex noticed that Melissa's nipples were erect. Alex watched excitedly as Melissa dropped her white cotton panties down to her ankles. Her shaved pussy came into view, glistening in its wetness. The twins examined each other's bodies. Any thoughts of incest being wrong quickly disappeared. Melissa had shoulder-length brunette hair, a petite body, pale skin, and perfectly formed features. Alex was a little taller. He had a thin, but muscular build. Alex wished that his parents would just leave the room, so he could have Melissa right there. He didn't need their help. He had watched enough internet porn to know what to do. Alex stepped towards Melissa. He poked her stomach teasingly with his cock. She grabbed his cock in her hand. "Melissa, that's enough. You will plenty of time for that later. Get over my lap for your spanking." Mr. Robinson patted his lap impatiently. Melissa felt a penetrating sense of dread as she draped her body facedown over her father's lap. Her feet and head dangled to the floor, while her smooth buttocks were presented to her father. Mrs. Robinson compared the twins. Her daughter had very smooth and soft buttocks, but her son had muscular buttocks. Mrs. Robinson felt guilty when she realized that she was secretly hoping for an opportunity to spank her son's buttocks with her hand. Instead, she just walked up behind Alex and placed her hands over his buttocks, squeezing them indulgently. Alex was startled at first, but made no objections. He secretly wished that his mother would spank him. He didn't want anything severe. He just wanted to be over her lap while she spanked him with her hand. He had secretly wished for that since childhood. He also wanted his mother to play with his cock some more, but he realized that Melissa would probably want to do that anyway. "Now, Melissa, this is the first spanking either one of you have ever received. As such, it will be the least severe. This will hurt. Hopefully, you will keep in mind that any future spankings you receive will be worse. Now, be a good daughter and stay still." Mr. Robinson raised his right hand, and then brought it down firmly on his daughter's the pale smooth skin of his daughter's naked butt. The sound of bare hand smacking bare butt, the way Melissa's buttocks gave way under the force of Mr. Robinson's hand, and the pink glow from where the hand had been were all very arousing for Alex. He became increasingly impatient. His cock was throbbing. He wished he could just pull Melissa off their father's lap, throw her on the bed, and stick his cock in her wet pussy. Instead, he just watched as Mr. Robinson continued to spank his daughter at a steady pace. Melissa soon began to show signs of discomfort. She winced every time her father's hand smacked her butt. The stinging that was building in her buttocks was becoming increasingly uncomfortable. Fortunately for her, the spanking soon came to an end. Mr. Robinson never really wanted to punish Melissa severely. He just really wanted an excuse to smack those sweet buns. "You took your spanking very well, Melissa. I'm proud of you. I am going to give you one reminder though, and I'm going to use my belt. I want you to kneel on the bed, and lay your head down on the pillows, so that your butt is sticking up in the air. I want you to stay like that until I tell you otherwise. Alex, I want you to get my belt off the nightstand, and bring in a damp rag from the guest bathroom. I am going to teach you something about women." Alex handed the black leather belt to his father. As he walked to the guest bathroom, he turned his head just in time to see Mr. Robinson raise the belt above his shoulder, and bring it down hard across Melissa's already pink buttocks, resulting in a loud "crack" sound. A cry of pain escaped Melissa's lips. When Alex came out of the guest bathroom with a damp rag, he saw his father gently massaging Melissa's buttocks with his hands. Alex could see a red strip on her butt where the belt had hit her. Mr. Robinson took the rag from Alex. He spread Melissa's legs slightly apart. He then used his fingers to wipe the rag inside Melissa's butt crack, cleaning it thoroughly. "OK, you two. Before you actually have sex, I am going to teach you how to please each other. Alex is going to go first in learning about his sister's body. Melissa, you are going to be good, or I will whip you with the belt some more. Now stick out the butt some more." Robinson Family Ch. 03 Alex loved the beautiful sight before his eyes. His twin sister was naked, kneeling on the bed with her head down and her lovely butt sticking up in the air. He could barely contain his joy when his father asked him to approach the bed so that he could learn more about his sister's body. It was awesome enough that he was seeing his sister naked, but now he was ecstatic that he was actually going to get to touch her intimately. Melissa didn't give any indication of it, but she too was excited about her brother seeing her like this. Alex sat down on the bed right behind Melissa's protruding butt. He looked at this father anxiously for further instructions. Mr. Robinson caressed his daughter's reddened buttocks with his hand. "OK son, look at how I am rubbing your sister's butt. I am sure she will enjoy it more when you do it. The breasts and reproductive organs are not the only parts of a woman's body that are susceptible to pleasure. Many men find an attractive looking butt to be very appealing on a woman, and many women enjoy a man's attention to her butt. I just finished spanking your sister. Of course, rubbing after a spanking is appreciated because it helps with the pain, but I'm certain that most of your sister's enjoyment is due to an entirely different cause. The Bible makes it clear that women are submissive creatures. Melissa had to expose herself and submit to chastisement, the biblical way, from a man in an authority position over her. This submission to punishment is likely to have a profound impact on her sexuality. Her hormones are in overdrive right now. She is in a vulnerable position right now, and as such, her body is crying out for a man to comfort her and assert his ownership over her. Your touch on her butt will be very welcome. Go ahead. Before you are allowed to pleasure her nipples and reproductive parts, you are going to learn how to take care of this pleasure zone. I cleaned her up for you. Rub her any way you want. Just don't stick anything in her anus yet. I will step aside now. Get to work." Mr. Robinson stepped away from the bed. Alex nervously cupped his hands around Melissa's buttocks. She flinched with pleasure at his touch. Alex squeezed gently. Then he squeezed harder. He wasn't sure if she liked it gentle or hard. He mixed up his movements. Alex turned his wrists around and used his fingertips to graze over the seam where the lower part of Melissa's butt connected to her legs. She seemed especially sensitive there. Alex thought she liked what he was doing, but he couldn't be sure. It suddenly occurred to Alex that he should be talking to his sister. "Melissa, you have a very nice butt. It's beautiful back here." Melissa didn't think she could blush any more than she already was, but somehow Alex's compliment did just that for her. It took away much of her anxiety to know that Alex could appreciate every part of her. "Thanks Alex. I'm really glad you like it." "Yeah, I do. Does what I'm doing make you feel good? I want you to enjoy this." "Yes, I'm enjoying this very much. You are doing great." Alex continued to massage his sister's butt in silence, but was soon overcome with an unexpected surge of affection. "I love you, Melissa." Alex was temporarily taken aback by his sudden exclamation, but Melissa responded perfectly. "I love you too, Alex. I'm glad we are learning about this together." Alex was glad too. He decided to make the most of this time. "Alright Melissa, don't be shocked. I'm going to make this good for you." Alex leaned in closer and planted a kiss on Melissa's left buttock, then her right one. He knew she would enjoy that. He used his hands to gently squeeze the lower part of her butt while he planted kisses all over. Without thinking, he began to pry apart her buttocks. Some of his kisses began to drift towards the previously untouched area between her buttocks. Alex stuck his right index finger between her buttocks and lightly stroked Melissa's anus with his fingertip. He didn't insert his finger. He just rubbed her sphincter. Melissa's breathing indicated that she was ecstatic at this sensation. Alex decided to take this one step further to show Melissa how much he loved her. Alex pressed his face against Melissa's spread apart buttocks. He stuck out his tongue and lightly touched her anus with it. He began to use the tip of his tongue to lightly flick her sphincter. "Oh Alex! Thank you so much! I love you! Dad, you can spank me as much as you want if it means that Alex can do this to me. Just kidding. I don't actually want you to spank me." Encouraged my Melissa's outburst, Alex continued to lick her anus. It was really clean back there, so Alex didn't mind. He was just glad that Melissa was enjoying it. After a few minutes of this, Mrs. Robinson decided to stop him. "OK Alex, that's enough of that for now. I'm really impressed that you took it that far. You certainly are a fast learner. Now it's her turn to make you happy. I want you to lie flat on your back, but before you do that, I want you to put your father's belt on. I know you're naked, but just put it on like you are wearing pants. I want you to lift your penis up so that it rests on your belly, then I want you to place the belt over your penis to hold it in place. I want to make sure that Melissa doesn't accidentally touch your penis. She will later, but we aren't there yet. Melissa, you are going to massage your brother's testicles. Those are his balls. They are extremely sensitive to pain, so be very gentle with them. Don't squeeze the actual testicles inside his sack. You can cup your hand underneath his sack and rub your fingers on his sack above his testicles if you want. His balls aren't nearly as susceptible to pleasure as his penis is, but you can still please him this way. I want you to learn how to handle his balls properly, since this is a skill that is very easy to neglect." Alex secured his penis in place and lied down on his back. Melissa knelt beside the bed. She cupped her right hand underneath Alex's sack. She gently played with it, being careful not to squeeze his balls. "This feels good, Melissa. Keep it up." "Ha. Keep this up after the way you tickled my anus with your tongue? This is boring. I want to make it fun for you too." Melissa leaned closer and ran her tongue across Alex's sack. She then puckered her lips and lightly kissed his balls. She lifted his sack and licked the underside of it. She gently nibbled on the lower-center part of his sack with her lips. Alex could feel her head so close to his restrained penis. He longed desperately for her to touch him there, but he knew it would come eventually. He was enjoying the way Melissa was expertly using her mouth on his balls. She was a fast learner too. Mr. Robinson tapped her on the shoulder. "OK Melissa, that's good. Both of you stand up now. You two certainly have no problems using your mouths on each other. That's good. The mouth can cause great pleasure. We are going to start venturing into orgasm territory soon. Before we do that, you two need to learn to use your mouths in a way that we should have taught you before I spanked Melissa. I want you two to kiss each other. Stand apart and lean in. I don't want your bodies pressing against each other. That is another thing that will have to come later. Just peck each other's lips lightly, then move on from there." Alex and Melissa looked into each other's eyes. Melissa planted a soft kiss on Alex's lips. Alex kissed her back. Melissa opened her mouth slightly and closed her lips around Alex's bottom lip, then she slid her lips off. She opened her mouth again, and Alex locked his mouth around hers. He inserted his tongue in her mouth quickly found her tongue. "That's good you two" said Mr. Robinson. "Now, let's move on to the fun stuff." Robinson Family Ch. 04 Mr. Robinson was impressed by how passionately Alex and Melissa had kissed each other. This was turning out to be a very entertaining night. "OK, you two are about to learn how to use oral sex to give your partner an orgasm. It wouldn't be fair to have you two take turns, since the person who has an orgasm first won't get very much excitement out of stimulating the other one of you. That is why you two are going to pleasure each other simultaneously. Alex is going to lie on his back on the bed. Melissa is going to kneel while straddling his face, and then she is going to bend at the waist and move her head towards Alex's feet while lowering her butt towards his face. This is a variant of the 69 position. What do you think honey?" Mrs. Robinson was getting wet at the thought of it. She managed to stammer out a reply. "That's very good. These two had just better remember not to be selfish. It is better to give than to receive, so I had better see these two working hard to pleasure each other, and not just taking in all the pleasure. Alex. Melissa. You two just remember that your only job here is to make each other feel good. Don't get so caught up in your own pleasure that you neglect each other, or I will have your father take his belt to both of you. Now, you two get in position." Alex eagerly flopped down on the bed, his erect cock eagerly pointing to the ceiling. Melissa climbed up onto the bed on her knees, and awkwardly swiveled her body to place her left knee beside the left side of Alex's face. Her temporarily wide stance rendered her off balance, and she instinctively sought stability. She bent at the waist and let her body weight fall along the natural plane created by her bent knees, and her butt smashed into Alex's face hard. Alex enjoyed the sight of his sister's beautiful buns, but he wasn't expecting them to suddenly clobber him in the face. Melissa immediately lifted her legs out from underneath her, thus putting her full weight on Alex's face. Feeling the cartilage of his nose quickly alerted her to the fact that her brother was under her. She started to gasp in horror, but that quickly turned into a gasp of pleasant surprise when she felt Alex's hands prying apart her buttocks, and his tongue tickling her anus. She giggled with pleasure. An impatient look from her parents let Melissa know that she should probably get into position quickly. "Sorry Alex, I lost my balance. I hope I didn't hurt your face." "It's totally OK. You can sit on my face anytime." Melissa got back on her knees. This gave Alex a great view of everything between her legs. He enjoyed her smooth buttocks, but was even more eager to taste her sweet pussy. "Wait Melissa. Stay right where you are." Melissa was on her knees, straddling Alex's face, but she had not yet bent over towards his cock. Mrs. Robinson came rushing over to the twins. Before you two dive into your snacks, I think you two should use your fingers to familiarize yourselves with the territory first. Just use your hands. Melissa, wrap your fingers around the shaft of Alex's penis. Don't start jerking it really hard and fast just yet. I want you to just squeeze it some and feel how hard it is. Use your other hand to tickle his balls. Alex, I want you to find Melissa's clitoris. It's right up under that fold of skin in front. Just use your thumb and index finger to lightly roll that around. Use one finger from your other hand, and stick it in her pussy and rub it around her vaginal walls. You two just feel each other out like that for just a minute until you really know each other intimately, then you can devour each other." Alex gasped as he felt his sister's soft hand grip his hard cock. He was thankful that she wasn't moving her hand much, or he would explode, especially considering all the built-up sexual tension from all of their activities that night. He decided to distract himself from the intense pleasure that Melissa was providing to his cock. Suddenly and without prelude, he jammed the index finger of his left hand deep into Melissa's pussy. The resulting rush of pleasure that overcame Melissa caused her to suddenly tighten her grip on Alex's cock, which she quickly loosened. Alex then found her clit. Grinning mischievously, her gripped her clit between the thumb and index finger of his right hand. Taking care to be gentle with her, he lightly kneaded her pleasure button, causing her to moan loudly with pleasure. "Stop. I can tell both of you are getting close to orgasm. I am going to let you use your mouths to finish the job. Melissa, when you get Alex really excited, his penis is going to shoot off some white fluid called semen. Many guys prefer for a woman to swallow the semen, but you don't have to. You can just spit it in the trash can by the bed if you want." "That's OK daddy. I want to see how Alex's semen tastes." "Very nice of you sweetheart. Now Alex, women don't usually shoot out fluid, but sometimes they can. In this position, you don't have much of an escape. Even if she doesn't ejaculate, her pussy juices might still drip. Are you OK with this?" "Of course I'm OK dad. I hope she does spill some fluid. I want to drink her pussy juices like I drink Red Bull." Alex's remark caused Melissa to blush. It was another sweet compliment from her loving brother. She bent at the waist and lowered her head towards his cock. She would be sure to reward him for his kindness to her. She gently placed her lips around the very tip of Alex's cock. She lightly flicked the tip with her tongue, eliciting loud gasps from Alex. She then applied more pressure with her lips, and slowly took more of his cock into her mouth as she wrapped her hand around the base of his cock. Alex could feel her tongue massaging his cock's swollen red head as her lips moved along his shaft. Melissa lowered her butt until it was resting on Alex's face. Alex wasted no time in planting a kiss on her pussy lips. He stuck out his tongue and ran it along her outer lips. He then pried those lips apart with his fingers and roughly jammed his tongue into her pussy as far as it would go. Unfortunately, he didn't have a Gene Simmons tongue, so he decided to do some rearranging. He pulled his tongue out of her pussy, and placed the tip of his tongue under her clit. As he lightly manipulated her clit with his tongue, he stuck a finger back into her pussy and rubbed the walls of her pussy. This did it for Melissa. She wanted to scream out loud as she orgasmed, but she still had her lips wrapped tightly around his cock. The resulting hum that came from her mouth produced some pleasant vibrations, which brought Alex over the edge too. Melissa gulped down the warm fluid greedily as it erupted from Alex's cock. When she had swallowed all of it, she made sure to clean off Alex's cock with her tongue, and then she collapsed beside Alex on the bed. Alex wrapped an arm around his sister and pulled her close to him. Mrs. Robinson sat on the edge of the bed. She casually played with Melissa's breasts as she spoke. "You two were great. You should be proud of yourselves. You had your first orgasms with each other, and your father and I were lucky enough to be able to watch and offer our guidance. Now, you two rest for a few minutes and just continue to hold each other close. Soon, you two are going to, as the Good Book would say, 'become as one flesh' with one another. Alex, you are finally going to be inside of your sister. Melissa, you are going to have Alex's cock enter your vagina. I know it looks big when it gets hard, but you can take it. I promise it will feel really good, and you will want him inside of you often. There are many different positions that you two can have sexual intercourse in, but for your first time, I am going to have to insist that you do this face-to-face. You two will start once Alex's penis becomes hard again. Alex, your sister has some really nice breasts. Maybe you could give them some attention while you are waiting. I'm going to leave you two alone now. I will let you know when it is time." Alex turned his head to face his sister. She looked back at him with loving eyes. He kissed her lips. She kissed back. They pressed their bodies against each other and kept their lips locked. Finally, Alex moved his lips away. He put a hand on Melissa's hip and rolled her over so that she was facing away from him. He then moved closer to her and wrapped one arm around her, and stuck his other arm underneath her. Melissa was confused by what he was doing, but her confusion quickly dissipated when Alex grabbed her breasts with both hands. He kneaded them gently, producing tremors of pleasure that engulfed Melissa. She moaned softly. Alex suddenly withdrew his arms, and roughly pushed Melissa onto her back. Alex steadied himself with his hands, and then leaned his body over Melissa. He brought hips lips down to Melissa's left breast and encircled her nipple with his lips, while his tongue teased it. He then gave some oral attention to her other nipple. After a few minutes of this, Melissa was panting with anticipation, and Alex's cock was starting to grow hard again. Mrs. Robinson was proud to see her son's cock growing in length so soon after his last orgasm. She jealously wished that her husband could do that. "Alex, it's time to enter your sister. Melissa, I want you to spread your legs and lift them up in the air. When Alex starts to enter you, bring your feet up high on his back. This will let him enter you deeper. Alex, go in slowly and gently. Give slow thrusts. Start small and then gradually increase the length of your thrusts. Don't expect to last very long inside of her. You can try for marathon sessions with her another time. For tonight, you are just going to focus on the experience of your first time together. Your father and I will be watching and providing encouragement." Alex swallowed the lump in his throat as he crawled over his sister to mount her. Melissa spread and lifted her legs as instructed. Alex stared down at the opening of her vagina. He wondered how his cock was supposed to go in. He nervously pried her outer pussy lips open with his fingers. He poked awkwardly at her opening with his cock. His mother suddenly came forward and grasped his cock with her hand. She guided the tip of his cock into Melissa's dripping pussy. Mrs. Robinson then stepped back after giving Alex a loving pat of encouragement on his butt. Alex pushed forward with his hips very slowly and gently. He watched as Melissa's eyes widened and she squirmed a little. Finally, Alex felt the head of his cock pop into her pussy completely. He was ecstatic to be in, and Melissa appeared to be equally pleased. He slowly pushed his hips forward to slide his shaft further into her. When the base of his shaft disappeared into his sister and would not go in any further, he felt an odd sense of accomplishment, as if this were the only sexual achievement that mattered. He kissed Melissa again before moving his hips back again to partially remove his cock. He gave her short slow thrusts before gradually increasing the length of his thrusts. Melissa began to moan with ecstasy. Alex slightly increased his speed. He wasn't going to go at her like a jackhammer, despite the urgings of his body, but he still wanted some intensity. Melissa rewarded his efforts with more appreciative moans. "Ahhhh! Alex! Alex! Thank you! I love you Alex!" Alex was on the verge of orgasm, but was determined to hold out for his sister. Finally, his sister came. She didn't flail around in violent spasms, but her orgasm was no less intense. Alex could feel Melissa's pussy contracting around his cock, and that was too much for him. He came a second later inside his sister. When he was done, his body urged him to just collapse on the bed beside his sister, but that's not what he did. Instead, Alex immediately pulled his cock out of his sister and leapt to his feet. He then grabbed Melissa's hand and pulled her off the bed. "Alex! What are you... Ow!" Alex silenced her with a slap to her butt. "Mom. Dad. Thank you so much for teaching us about sex, but I think we should save any further lessons for another night. It's getting late, and it's about time we all went to bed. If Melissa doesn't mind, I think I am going to sleep in her bed tonight. Goodnight. Come on Melissa, let's go to bed!" Alex ran down the hall dragging Melissa by the hand. Mr. Robinson watched his son and daughter run off to bed naked. He decided to let them sleep in tomorrow. He knew what they would be doing the rest of the night.