"Let's leave these two lovers alone." I said. "Come, excuse the pun, join us on the lanai when you're thru." Meg and I headed for the kitchen to prepare a pitcher of Vodka Martinis to take to the patio. We sat together on the couch. "Well, what do think?" I began. Meg got a contemplative look on her face. "Well, it was a surprise to Matt. He had no clue what was happening. He resisted for a minute but he finally figured it out. I don't think he thought we would ever do something like that." "Did he enjoy it?" "I hope so because I sure did. He unloaded a huge wad in me. What about Mindy?" "She was so happy. Apparently she wanted it this way for a long time." I put my arm around Meg's shoulder and let my hand rest on her right breast. She kissed my hand and placed her hand mine. "How far do we let this go?" I asked. "I think we let them decide. You and I can do whatever we want. But I think we should encourage everyone to participate as a family." "I agree. Family participation." Mindy and Matt joined us about 30 minutes later holding hands. They were both naked with beaming smiles on their face but hey both looked tired. Matt already had a semi erect cock. They sat down in chairs across from us. Mindy sat in the chair with her legs spread allowing for a clear full on view of her pussy. Seeing that and how happy they were started my dick to a semi ejection as well. "How are you doing? Any problems with what happened so far?"" I asked. The smiles on their faces became larger. 'Not a one." they replied in unison. Mindy spoke up next. "We talked about this in the shower. We want to thank you both. You have given us the best gift we could ever want. We love you." I poured each of them a martini and handed them the glasses. After what happened today there was no sense in putting restrictions on their vacation. They both sipped from their glass. Neither one showed an aversion to alcohol at least vodka. "Ok. Here's our thoughts on the remainder of the vacation from a sexual perspective. You can do whatever you want with whomever you want as long as your partner agrees. We will not stop you from doing anything. We would like to participate in anything you want. We want this to be a family vacation. Are you ok with this?" They both nodded. "We're going to treat you as adults on this trip so booze is not a problem. We know that you will be tempted in high school to drink. We want you to respect yourselves, each other and learn to be responsible adults. We also want you to know that we love you very much and want each of you to be happy." Mindy got up moving to me, placing a loving kiss on my lips. She then moved over to her mom and did the same. Matt came over sticking out his hand for me to shake. I pulled him towards me and kissed him on the lips. He moved over and kissed his mom. They both moved back to their chairs. They looked at each other then kissed. I looked at Meg and kissed her on the lips. "Any questions?" I asked. "When you say anything, are there any restrictions?" Matt asked. I looked again at Meg. "Nope. But your partner needs to agree." "Does that mean I can give you a blowjob?" Matt asked looking at me. "If that's what you want!" I responded. "But first we need to eat something. I think we all are going to need our strength." The entire family helped fix dinner. During dinner the small talk was around how we came up with this idea. The kids had no idea that we would be this open with them or even consider this. After we cleaned all the dishes we went for a walk on the beach. Mindy and I walked together with my arm over her shoulder gently touching her breast. She had her arm around my waste occasionally squeezing my butt and teasing me with her fingers down my crack. We talked about nothing in particular. Suddenly she stopped. She reached around my neck pulling me down to her lips. She gently kissed my lips then pressed them harder. Her tongue began an inquisitive search of my mouth. I returned the search by sucking her tongue into my mouth. Mindy's hand moved down to gently touch my now hard cock. She broke off the kiss as we continued to walk down the beach. Matt and Meg were walking behind us. They had their arms around each other's waist. They too were titillating each other's butt and crack. Matt had a full hard on standing straight out. Meg would tease Matt by reaching for his erect cock and stroke softly. When Matt saw Mindy begin to kiss me, he stopped and pulled his mother very tightly to him. His hard cock was pressed between them. He passionately began kissing his mother slamming his tongue into her mouth. Meg responded to every motion he made. Matt began to rub the palm of his hand over his mothers right breast. They both moaned. Meg could feel the cock between them grow. Meg reached down to flick the head of Matt's erection with her finger tips He responded with a moan. Matt gently pinched his mothers nipple as they continued kissing passionately. Meg broke the kiss. "I think it's time we went back to the house." she announced. No one disagreed. Both couples began running towards the house hand in hand. It turned into a race to see who would get to the house first. It made no difference who won the race. The goal was to get their partners there to satisfy the urges from everyone. The sun had set but the automatic soft lights on the lanai were on. It was like a choreographed dance when they reached the house. Mindy guided me to the couch as Matt guided his mother to sit next to me. Mindy and Matt kneeled between the legs of their partner. They looked at each other, then moved to passionately kiss on another. When they were finished, I watched Matt grab his mother's hips to pull her to the edge of the couch and put her legs over each shoulder and immediately begin licking Meg's pussy. He started at the bottom of her slit and moved upward. He took her pussy lips in his mouth to massage them with his tongue. Meg closed her eyes and put her head back. When Matt reached her clit he gently massaged it with his tongue and kiss it with his lips. Meg moaned as she gyrated her hips into her sons face. I was distracted as Mindy began stroking my rock hard cock as she looked into my eyes. She licked my balls then sucked each one into her mouth massaging them with her tongue. She began moving her tongue up my dick until her mouth reached the head. She kissed it tenderly and suck the pre-cum into her mouth. Very slowly Mindy began to take my cock in her mouth using her tongue to titillate the underside of my corona. As she held my cock at its base, her head began bobbing up and down my shaft. I began to moan. Mindy had taken my whole cock in her mouth. I could feel my head at the back of her throat as she began to massage my balls with her other hand. Soon the moans of Meg and myself synced together. I was very close to cumming as I knew Meg was. "I'm going to cum. Oh god it feels so good." I said. Mindy began to suck me faster. I leaned my head over and began passionately kissing Meg. Our tongues were fighting for control of each other's mouth. Soon we were both coming, me in my wonderful daughter's mouth and Meg in her son's mouth, his tongue digging deep into her pussy. Meg and I weren't so much kissing anymore as we were breathing heavily in each other's face as we moaned. "Oh honey. Suck my pussy. Suck your mommy's pussy. Ooooohhhh, I'm cumming!" Meg exclaimed. We came at the same time. I looked at Mindy to see hear swallow most of my cum and the rest streaming down my cock. I was so turned on watching my 14 year old daughter giving me a blow job, I spurted 6 times in her mouth. "Oh baby that feels so good....oh suck me, suck me, suck me!" I moaned. My cock popped out of Mindy's mouth when I was thru. She continued to stroke me with a smile on her face but she did not open her mouth. Matt finally finished licking all of his mom's cum from her pussy. He lifted his head from between his mom's legs and looked at Mindy. They moved to each other's face to begin a passionate kiss that shared our cum between them. Meg and I watched as our cum started oozing from the corners for their mouths. When they finished the kiss they each licked the other's face to remove the cum. I put my arm around Meg and pulled her close. I whispered "They're a little more nasty than I imagined." "Yes they are. I think we're going to enjoy the rest of this vacation... if we live thru it." She replied. Mindy sat in front of me with her legs crossed again showing her wet pussy. Matt did the same with a tremendous hard on. No one said anything. Mindy looked at Matt and raised her eyebrows with sexy look on her face. It seemed as they had telepathic powers. Mindy laid on her back and spread her legs as Matt moved to straddle her head with his legs so his dick was over her face in a 69 position. Matt jammed his face into Mindy's pussy while Mindy took all of Matt's cock into her mouth. The both began thrusting on each other. My hard on came back almost instantly. Meg and I sat there and watched the sight of our kids eating each other. My hand moved to Meg's breast as Meg moved to caress my hard cock. She laid her head on my shoulder.