Note: This story was dynamically reformatted for online reading convenience. Feedback always welcome. Submit to: boston_erotica@yahoo.com All stories are fictional in nature, with influence from real life. Any suggestions, comments or ideas are also always welcome. The Sandra Series is a series (currently) of 5 stories. Reading them in order is not necessary, but makes the story more understandable. This story contains: Teaching, Straight, Oral, Anal I was a little worn out from being in the Jacuzzi with Sandra and had some time before we went out to check out the local town, so I was lying in bed with just a bathrobe on, daydreaming about the feel of Sandra's warm tongue exploring my body. As I started to slowly caress my wetness, I heard a knock on the door. I closed up the robe and said it was okay to open the door. Sandra's younger brother, Joe was at the door. Joe was going to be a Senior in high school and just found his freedom in the form of a new sporty car, given to him by his parents. He seemed to always wear a cocky grin, and now was no exception. I asked him what's up, and he paused before closing the door and telling me he needed my advice. He was going out with his girlfriend tonight, and they'd fooled around a bit, but he said he wanted to know how to really go down on her. He figured seeing as how I seem to know how to lick quite well, I could tell him the secrets. My cheeks flushed and I think he could tell I was appalled. Before I could ask him why he would think such a thing, he told me he had installed a small spy camera in his sister's bedroom because he liked to watch her masturbate in the tub. He saw our entire session earlier. I could see he hard underneath his jeans, and didn't doubt he enjoyed his little show. Here's how it will be, he said. You are going to show me everything I want to know, and in exchange, I won't tell me parents that you're having a relationship with my sister. They're old school and would not be at all happy with it, so they'd most likely ask you to leave. I thought about my situation. I didn't want to show Joe anything, especially seeing his strong suggestions would be that I would need to physically let him "practice." But I also didn't want to leave so soon. I still wanted more time with Sandra. Ok, I said. We have 45 minutes before I need to get dressed to go out, so what do you want to know? Without another word, Joe moved into me and gently pushed me back on the bed. I landed on the edge with my legs slightly open and the robe parted, so Joe could see my shaved lips, still wet from my earlier daydream. He put a hand on either of my thighs, and slid my legs open. I told him he needed to learn to be less rough. On his knees, with a look of longing on his face, he looked up at me and asked me how he should please me. With both hands, I guided him gently into my wetness, telling him to slowly lick up and down my lips, gently flickering over my clit each pass. He was a quick learner and really got into it. Before long, I was lying back and let him practice. He had me really wet and continued to lick up and down the entire length of my pussy, hitting my clit each time, sending waves of pleasure over me. I was getting close to orgasm and really enjoying myself, and really wanted to feel his warm, hard cock in my hand. I sat back up and told him to stand. He was fairly tall and lean, so he was at a good height for me to slide onto my knees and be at the right height. I undid his belt and slid his jeans to the floor. I slid my hand over his boxers, tightening my hand around his cock, sliding his precum soaked boxers over his warm head. After sliding his boxers to the floor, I took his hard cock into my mouth. His groans told me he was enjoying the lesson and I began to suck harder. He was fairly good sized, so I could only take in a little over half, but I made up for it by flicking my tongue against his little hole each time I sucked. I could tell by the amount of precum that he was close to an orgasm. I was going to make him cum in my mouth, but he had other plans. He grabbed me, a little hard, and pushed me onto the bed. I told him this lesson was only about oral sex and we weren't going forward. He laughed and told me he made the rules. Here's the deal he said. For the rest of your stay here, you do what I say, when I say. If you don't, your little secret will be out. If you want to stay with Sandra, then you'll have to be my little slut as well. I'll be fair, but you do everything I say, got it? As my eyes started to water, I knew I had no choice. What had I done? I let him roughly grab me and bend me over the bed. I was still wet from him licking me earlier, so he slid in pretty easily. I was still upset, but it felt good having a hard cock in me, and before long, I forgot that he forced this on me and began to enjoy myself. I could feel my orgasm building. He let himself slide out for a second and ran his hand through my juices, sliding his thumb in my tight hole. Entering me again, I could feel his thumb against my ass. I tried to tighten and move as he pushed, but having nowhere to go, I groaned as his thumb entered my rear. He was really into it and pounding my hard. My orgasm continued to build as I got used to his assault on both my holes. His thumb was filling my ass and actually felt good as he slowly slid it in and out, letting me tighten against him. With a final groan, he shot his load in me. I could feel the tight liquid explode inside me. I tightened around him, sucking his cock inside as I climaxed, giving out a little scream. He slid out of me, pulled up his clothes, and thanked me for the lesson. He told me he would be back for another lesson tomorrow and told me to have a good night. Looking at the clock, I realized I only had a few minutes to get dressed, so I quickly got out some clothes, makeup, and did my hair, just in time for Sandra to come knocking to get me. As we walked to the car, I could still feel Joe's warm cum inside me. I felt guilty not telling Sandra, and even more guilty that I actually enjoyed being manhandled by him, but just added it to an ever growing list of experiences from summer vacation.