Doing My Stepdaughter's Best Friend

My teenage stepdaughter, Sandi and her friend Rachel always hung out together. They both had just finished their senior year in high school and they both were looking forward to heading off to college, ?but not before we have some summer fun,? declared Rachel as they lay out by the pool in the back yard.Sandi and Rachel were inseparable. Sandi had her mother?s good looks and charm, and Rachel was her equal by another mother. I never looked at Sandi in a sexual manner, although I will secretly admit to wondering how much different she might be in bed than her over-sexed mother. As Sandi went from being a skinny sixteen-year-old to an eighteen-year-old, her outfits got shorter and her shorts and t-shirts tighter, which kind of drove me crazy at times.As Sandi and Rachel lay out at the pool, I kept to myself in the office I had established in the house. Peeking out the dinette door to the pool, during a break, I admired their slender and well-toned bodies from afar. Sandi was well built and had long blonde hair with brown highlights and a slender body style, while Rachel was the taller of the two and had long black hair and larger starter breasts.I grabbed my cock and readjusted it for comfort in my jeans.Sandi wandered into the house as I was standing in the kitchen making me a peanut butter almanbahis şikayet sandwich.?You should be in a wrap,? I told Sandi as she stepped into the kitchen to make her and Rachel a sandwich, clad only in her very skimpy bikini.?You?re supposed to be my dad,? Sandi declared.?I am,? I replied, ?But I am also a guy, so please indulge me,? I quickly shot back.Sandi took the peanut butter jar from my hand.?Really,? Sandi declared, ?Doesn?t mom keep you happy???Yes, she does,? I replied matter-of-factly. ?But your mother is at work and I don?t need the tease.??There?s no tease,? Sandi shot back. ?I am what I am.??Yes, you are,? I replied, playfully slapping her on her butt.?Hey,? Sandi shot back, ?That?s off-limits!?I laughed.?Then, cover it up,? I dutifully replied.Sandi rolled her eyes and continued to spread the peanut butter across the bread, as I stood by, leaning up against the kitchen counter in silence, eating my own sandwich.Sandi slapped a bread cover down and declared, ?Done.?I watched in silence as Sandi wrapped the sandwiches in paper towels and sauntered out to the pool where Rachel waited on her.I watched from the kitchen as they chatted and ate the sandwiches, trying to rationalize my desires. I had reached my frustration point. I unzipped my pants and pulled out almanbahis canlı casino my stiffy. I needed some serious relief.I closed my eyes to envision myself being relieved of my frustrations by either Sandi or Rachel. Suddenly, the door to the dinette opened and Rachel stepped in.I couldn?t get turned around fast enough. Rachel had caught me in full stroke and there was no way I could hide or deny the obvious.?Oh! my Gawd!? Rachel declared, her hand covering her mouth in shock. I quickly apologized as I stuffed my massive tool back into my pants, my back to the door.Rachel backed out of the doorway and closed the door behind her. She quickly retreated to the chaise lounge and I could hear her telling Sandi that she had caught me jerking off.?No way,? Sandi replied. ?Are you serious???Yes,? Rachel replied. ?I saw everything.??Oh my gosh!? Sandi replied. She quickly apologized to Rachel.Rachel stayed quiet for a second and then she asked Sandi if she had ever seen me naked.?No,? Sandi replied. ?Oh my gosh! He?s my step-dad!??So what?? Rachel replied. ?He?s not your real dad by blood.??I know,? Sandi replied, ?But he?s still my dad.??Step-dad,? Rachel replied, re-emphasizing by saying again, ?Step-dad.??Yes,? Sandi replied, acknowledging the difference. ?Step-dad.?Rachel almanbahis casino stayed quiet for a few seconds.?He?s got a hot body,? Rachel declared.?Oh my God!? Sandi shot back. ?Don?t tell me you have the hots for him!??Okay,? Rachel replied, ?I won?t tell you.?Damn.?Do you think he fucks around on your mom?? Rachel asked.?I hope not,? Sandi replied. ?Mom would be crushed.?The conversation waned for a few minutes, and I watched as neither Sandi nor Rachel said a word at that point. Then, Rachel said,?Go with me into the house.?Sandi stood up and started for the house with Rachel beside her. I quickly retreated to my office.I heard the dinette door open and both girls stepping into the house.?I gotta pee,? Sandi declared as she headed into the guest bathroom. I stuck my head out of my office and looked for Rachel. She was leaning against the kitchen counter, clad only in her string bikini, waiting on Sandi.?Psssst,? I called out. Rachel looked in the direction of my office. I motioned for her to step down the short hallway and to the office.As Rachel stepped into my office, I again apologized for my lewd conduct.?That?s okay,? Rachel replied, her arms folded across herself. ?I?m glad I turn you on.??Both of you turn me on,? I disclosed.Sandi exited the bathroom and Rachel decided to retreat with Sandi back to the pool. I could see them talking at the pool. After a few minutes, Rachel came back in the house and made her way to the restroom, as I retreated to the sanctity of my office. When she came out, she casually stepped into my office.