"No, no, no," I said, although, of course, it had been a perverse fantasy of mine for some time. "Just exploring theories." Then a legitimate idea came to me. "Hey, that Westermarck thing, sexual attraction between siblings is blunted by growing up together?"

"Yes, that's the theory," she said.

"But you're not the little girl I grew up with. You've always been more introverted, shyer and quieter, and that only got worse when you built that anti-Mom shield around yourself at puberty."

I snuck a hand over to her leg, just below the shortest skirt I'd ever seen her wear. "That's not who's sitting beside me now. Legs suddenly a mile long, breasts that beg to be squeezed, and not only desperate to be fucked, but wanting to be treated like a real slut while it's happening. You're a whole new Sarah that I'm just now meeting. I may not have lusted after the caterpillar you were, but the butterfly you've become is a thing of beauty I could study for hours."

She put her hand on top of mine and gave it a gentle squeeze. "Thank you," she said quietly.

Then, for a couple of minutes, there was no talking, each of us processing the many inappropriate things we had said to each other.

A song she liked came on the radio and when she took her hand off mine to turn up the volume, I forced myself to put my hand on the steering wheel so it wouldn't start crawling its way under her skirt. She started singing and I joined in, and for the next fifteen minutes, we sang songs together. Neither of us were great singers, but it was fun, freeing, and allowed the palpable tension between us to lower but not fade away.

I took a few glances at her tits so perfectly framed in her dress. I took even more glances at her nylon-clad legs. My dick stayed hard almost the entire time. Twice, I openly adjusted my package. Both times she noticed.

We were just about a couple of minutes away when Sarah, out of the blue, asked, "Do you have a nylon fetish?"

"Pardon?" I asked.

"I've noticed you checking out my legs at home and again in the car," she said.

"Oh," I said, a little embarrassed.

"I told you why I started wearing them secretly, and Blair liked them the times I let him see. Today I wore them for my date, and I can't help but notice..." Here she paused to lick her lips nervously, her mouth having apparently gone dry. "I notice that my date's dick seems to twitch every time he looks over at my nylon-clad legs."

"Well, your date is very appreciative," I said. "Continuing our promise of honesty, I can say you have beautifully shaped legs that would look wonderful completely bare, but yes, there is just something about seeing them wrapped in such sexy material that does something to me."

She moved her left hand up to my right, pulled it off the steering wheel and moved it back to her leg.

"You seemed to like resting your hand on my leg earlier. And yesterday," she said.

I was speechless.

This was crossing a line a bit more than the naughty talk which was still nothing more than talk—or at least, I thought it was nothing more than talk.

She added, "I liked it too."

"I know I have already said it a few times, but you have amazing legs, Sarah," I complimented. I began to move my hand ever so slowly to caress her leg and feel the silky sheer nylons.

"Thank you," she said, looking at my hand on her leg.

"These stockings are super soft," I said. I had fucked only a couple of women, both older MILFs, who wore stockings, and they were so sexy... but neither had felt this sensually soft."

"Yeah, they are expensive," she said. "When I first bought some of my own, I got a cheaper brand and could immediately tell the difference from what I'd borrowed from Mom's drawer. So I upgraded to her brand, though they cost a lot more."

"Well, they are worth it," I said, trying to focus on the road while being distracted by my hot sister and her silky sheer legs.

"I hope so," she smiled. "And they are not pantyhose." She pulled her dress up enough to show me the lacy tops of stay-ups and an inch or two of creamy thigh above.

"Oh my," I said, my cock now raging. Many of my lovers had teased and tempted me before as part of our foreplay, but no girl had ever had this strong of an effect on me.

"You like?"

"That is the sexiest thing I have ever seen," I replied, as I made one last turn before we reached the restaurant... fucking bad timing.

"I wore them for you," she repeated.

"I'm flattered," I said, as I pulled into the parking lot. I parked.

She looked into my eyes. I looked into hers. She leaned in and kissed me. I was shocked and yet, I wasn't.

As her lips met mine, this moment seemed destined—pre-ordained by the Gods—and nothing in my life felt more natural.

The kiss was tentative and tender, with both of us nervous and processing the reality of what was happening.

It only lasted about thirty seconds before she broke the kiss, moved her hand to my cock and squeezed it and said, "I meant what I said earlier, big brother, I am all yours tonight."

She then kissed me one more time, backed away and got out of the car.

I adjusted my throbbing cock, got out of the car, walked to her, took her hand in mine and led her into the restaurant. Like the kiss, her fingers entwined with mine felt so perfect.

A few minutes later, we were seated, our drink orders taken, and looking at the menus. God, there was no denying it, I didn't just have a crush on my sister. No, not only did I want to fuck Sarah, but I think I was in love with her and not in a platonic sibling way.

The truth was, the feelings I was feeling right at this moment were unlike any I had ever felt for any of the girls or women I had dated or fucked. This feeling was different, confusing, and all-consuming.

Yet, I tried to push the thought away.

She was my sister. She was vulnerable because of her breakup.

I was her brother. I was supposed to protect her, not take advantage of her vulnerability.

We ordered and ate our meals, talking about school, our scholarships and where we were going in the fall. While we both had lots of offers, all but one of our schools were vastly different: Stanford. Well known for its strengths in science and research, the Cardinals had also turned out NFL stars like Andrew Luck and John Elway.

That led to an entire conversation about perhaps both going to Stanford. I had assumed she would be going to Harvard, and I had been leaning towards Duke, but the idea of both of us living together and being there for each other was suddenly a pretty good idea. And, by the way, this wasn't about sex but about two siblings looking after each other like we already had for years. This was about family.

It wasn't until we were sharing a cheesecake dessert that the conversation veered back to sex and again it was Sarah who initiated it as she asked, "Have you ever gotten a nylon-clad foot job?"

Before I could respond, I felt her foot move between my legs and rest on my crotch area.

"Oh, Sarah," I moaned, my hand going to her foot and beginning to caress it and admire her perfectly manicured pink toenails.

"Is that a yes or no, big brother?" she asked, ever so slightly pushing down on my dick with her dexterous foot, her tone again so sexy and sultry.

"Actually, that is not something I have yet experienced," I admitted, "but it's on my bucket list now."

"Well, maybe tonight we make some bucket list items come true," my usually shy sister bluntly suggested.

Not backing down, but making a feeble effort at being the voice of reason, I responded, "Be careful what you suggest."

"I'm not suggesting anything, I'm bluntly reminding you I am all yours tonight," she stressed, moving her foot up and down my cock slowly. "I will do anything you ask me to... anything."

There it was.

All the talk, all the innuendo, all the teasing and the brief intimacies had brought us to this moment. The line. Crossed. But... not to the point of no return.

I asked, "Are you serious?"

"Mike," she said, using my name instead of big brother, "I want you to take my virginity tonight."

I was speechless. Based on all that had transpired today this wasn't a real surprise and yet it was a real surprise. The idea is one thing, the reality another.

"Really?" I finally asked.

"Mike, you said I should give my virginity to someone I love," she continued, looking at me with vulnerability and yet completely serious. "And there is nobody I love more than you."

"I love you too," I said, this easily the most romantic moment of my life on the supposed most romantic day of the year.

"So, will you fuck me?" she asked. Okay, not so romantic, but my cock jumped.

"You know there is no going back from this," I said. "I don't want you to regret your first time down the road."

"I want my first time to be you fucking me hard with that fat, nine-and-a-quarter-inch long cock," she nastily said, as she resumed rubbing my dick with her nylon-clad foot.

"Will there be anything else?" the waitress asked haltingly, arriving just in time to hear that sentence.

"No, just the bill, please," Sarah said.

"Yes, ma'am." The red-faced waitress, just a couple of years older than us, nodded and left.

"Can you book a hotel here?" Sarah asked once we were alone. "I don't want to wait until we get back home or have the rarity of mom showing up. I need your dick now."

"I'll check," I said, quickly pulling my phone out.

I checked Hotwire (the best place to find a good deal), found a four-star hotel at an excellent price considering it was last-minute, booked it, and said, "Done."

"I'm going to suck your dick so fucking good," she wickedly said, even as her foot continued to tease me.

Again, her timing was off as the waitress returned with the bill. Her hand trembled as she laid it down on the table.

Sarah said, "Sorry, but I'm really horny."

"No problem, miss," the waitress said as she handed me the card reader. As I paid the bill, she blatantly looked me up and down. "I understand completely," she said to my sister, who smiled and gave my cock one more toe squeeze before bringing her foot down.

As soon as I handed the device back to the waitress, Sarah stood up and said, "Let's go."

The waitress hadn't left us, merely taken two steps back to let me out. "Duty calls." I smiled at her as I stood, noticing she was quite pretty, with liquid brown eyes.

"Calls loudly," she punned, focusing those eyes directly on my tented suit pants.

"Yes, it does," Sarah agreed, taking my hand and giving the girl a wicked wink. Leading me out to the car, she asked, "How far is the hotel?"

"Just three minutes," I said.

"Once we get in the car pull out your dick," she instructed. "I want to drain that first load before you fuck me so my deflowering can take a good long time."

Damn, she's really been getting a wicked education from the girls' grapevine and all the porn she's been watching. "It's only a three-minute drive," I pointed out as we reached the car.

"I've been craving this dick since last night," she said, as I opened the door for her. "Are you really going to make me wait any longer?"

"No, no, no," I said, never seeing someone so desperate to suck my dick and I've had a few very eager cock suckers.

I walked around to my side and when I opened the door, I found she'd already leaned over and pulled my seat belt across and clicked in the buckle. So, I was apparently supposed to sit on top of the pre-fastened seat belt so it wouldn't interfere with her getting to my cock, but we wouldn't have to listen to the damned pinging of the seat belt sensor. Yes, she's been getting a very thorough education on slut tips despite her virginal lack of actual experience.

Once I got settled and she fished out my straining manhood, she said, "Fuck, what an amazing cock," before she bent down and took it in her mouth.

"Oh, God, Sarah," I moaned, as she didn't waste any time with niceties and instead bobbed hungrily.

While I prided myself on being able to last a reasonable length of time, the wild drive, the hot talk, the declarations, the foot rub and now my sister's lips wrapped around my cock had my balls burning in seconds.

I didn't even attempt to start driving knowing I wouldn't last long and didn't want to cause an accident when I came. So, I sat there in a pool of light from a parking lot lamp post and watched my sister suck my dick in utter disbelief that this was happening and desperately trying to hold back as long as I could.

It didn't work.

After maybe a minute of this hungry cock sucking, where she somehow kept using her tongue while devouring half my dick, I was about to blow my load. I generously warned, "I'm about to come."

"Mmmmmmm," she purred, not slowing down, and a few bobs later I erupted.

"Oh fuck, Sarah," I groaned, as I unloaded in her smooth mouth. She swallowed every drop with ease without missing a beat.

"Fuck, you drained me completely," I said, about a minute later as she continued to suck my cock.

She finally sat up and said, "That better not be true."

I laughed, "Oh, trust me, for you, they'll refill quickly."

"Good, because you are going to unload them on me," she said.

"On you?"

"Yes, while I'd love to feel your cock pulsate and fill my pussy up, I don't want to get pregnant," she said. "And I do really look forward to your load all over my face."

"What about your tits?" I asked, finally making another fantasy come true as I cupped them.

"What? You want to suck them? Fuck them? Cum on them?"

"Yes, yes and yes," I nodded, as she leaned forward and kissed me. I'd long lost any squeamishness about tasting my spunk in a lover's kiss and kissed her hard, looking forward to doing the same when my tongue was coated with her pussy juice.

She then said, as she sat back on her seat, "Now get to the hotel."

"Yes, ma'am," I said, as I put my dick away.

"I need to have that cock in me ASAP," she said.

"Oh, you are going to get the fucking of your life," I promised. "No, wait. You are going to get the fucking of my life."

"Oh, hell, Mike, I'm so glad you're here with me tonight instead of Blair. And not just because of the extra four inches. With him I would have had to hold back, I couldn't let loose with all these long-held fantasies our first time together... but with you, I feel like I can, and you'll just accept me instead of judging me. Am I right about that?"

"Well," I mused, "I'm not going to deny you've caught me completely by surprise," then added with a chuckle, "and I definitely want to see what erotica you've been reading and watching, but yeah, I'm good with it all. I've had some pretty good teachers and the main thing I've learned is that we're all freaks if we feel safe in letting them out."

"Remember, tonight I'm completely yours," she said. "I'll obey any command you give me."

"You know, that is so hot," I said, as I started driving. "But I also want to make sure you get everything you want. You're the virgin, this night is about you."

"No," she said, putting her hand on my leg. "We're Valentines, it's about us."

"Yes, us," I agreed.

"And more than that," she said. "Tonight I'm going to fuck my first dick, suck it clean afterwards, go completely from virgin to slut with you..." She hesitated a moment, then pushed on. "But I don't want it to end today."

"Me either," I said, suddenly thinking how our mother being mostly gone and having the house all to ourselves could be a blessing. At least until the end of summer when we'd depart for our different colleges.

"It will be easy until school is done," she said, seeming to read my mind, "but...."

"But then what?" I groused, annoyed at the thought of being separated and annoyed at being stopped right then at a red light—I really needed to get my new Sarah into our hotel room.

"But, what if we did both go to Stanford?" she asked, returning to our dinner discussion.

My mood instantly lifted. "I could go to Stanford."

"We could go to Stanford."

"And be a couple?" I asked, drawing out each word with slight trepidation.

"Yes, no one will know us there," she said. "No one will know we are siblings. Our family name is common enough that we could joke about how alphabetical lists brought us together."

"True," I said. "But are you sure you want this?"

"Mike, I love you unconditionally," she said, "and unless you're shitty in bed, I know exactly who I want to spend the rest of my life with."

"I'm in," I said, as I resumed driving.

"Oh, not yet, but you will be soon," she promised, her sultry, silky, sinful voice making my shrinking cock reconsider its brief slumber.

"You are insatiable," I laughed, looking at her.

"And horny as fuck," she said. "Actually, horny to fuck."

As I maneuvered into a parking spot, she urged, not even giving me time to respond to her hungry, incestuous lust, "Hurry up."

"Okay, okay," I laughed as we both got out of the car and entered...