***This is a continuation of my previous story "Trying to Get Along with My Sister" You don't HAVE to read the first one to read this one, but you'd probably enjoy it more if you do***
All throughout the rest of the summer of 2020 it was rare for my sister, Kelly, and I to miss a night of masturbating together. After her life fell apart - including a divorce, being forced to give up custody of her daughter, and losing her job - she had come to stay with me. A combination of horniness, thin walls, lingering sibling rivalry, and headphone related faux pas had led to us competitively masturbating in sight of one another. After my initial reluctance I got to the point where I could hardly imagine jerking off without her there.
Most nights we'd go for a run together after I was done with work, and when we got back one of us would cook while the other took a shower. Then after we ate the one who cooked would shower while the other cleaned up. Then we'd settle in to watch TV or a movie on the couch together. Most of the time it was standard stuff like 80's teen angsty shit or 90's comedies, but every so often when one of us was more horny than usual we'd pick something meant to serve a dual purpose. One night Kelly picked "9 1/2 Weeks" and we both had our hands in our pants before too long. On another night I picked "Dirty Dancing" because she had told me that the first time she ever got off was grinding against a couch cushion while watching it.
Late in the summer while watching "Roadhouse" on stream I realized that I had been watching it on basic cable for so long that I forgot that Helen Slater had a nude scene in it. Kelly must have seen me rubbing my cock through my shorts during the scene because the next night she surprised me by picking "The Legend of Billie Jean."
"I know you'll love this one!" She said as she hit play.
"Oh god yes. She was so fucking hot."
"I bet that's what Ellen looked like when she was in her early 2o's," Kelly said very seriously while invoking my second ex-wife.
"I didn't know her then, but you're not wrong." I responded, thinking of the pictures of her I had seen from that time.
"What was she like to fuck?" Kelly asked in the matter-of-fact manner of a sister who had spent months masturbating with her brother.
"She was odd. She'd say she hatted porn and even pretend that she didn't like stuff like cursing in movies, and then all the sudden, if she had a bit too much wine, she'd get really... adventurous."
"Oh yeah, how adventurous?"
"Finger in my ass during a blow job type stuff most of the time, but one time she told me she wanted to make a sex tape... like Kim Kardashian or Paris Hilton."
"Wow... I guess it's always the quiet ones huh? Oh, shit here comes THE scene" Kelly motioned to the TV as Billie Jean appeared in her little cutoff gray tee-shirt and bikini bottoms.
I stared at the screen and grasped my dick through the leg of my sweatpants while Kelly looked at me hungrily. By the time Pat Benatar was singing "Invincible" we had stopped paying attention to the movie and were watching one another till we came.
And that's how it went as the summer wore on. One of us would get horny and just go for it assuming the other would join in. We'd come and then we'd go to bed, me in my bedroom and Kelly on my couch.
One night we got really stoned and Kelly finally said the thing that had been floating around us all summer.
"So... are we ever going to take it further Paddy?"
"Ah..." I responded as I felt my face going red, but I couldn't think of how to answer.
"Sorry Pat. I know that might be a bridge too far." Kelly said while looking away from me.
"I don't know Kel. It's not like I don't want to. Most of the time I see you walking around the apartment I just want to grab you and tear your fucking clothes off."
"Yes please!" Kelly said with raised eyebrows.
"But it's... you know... We really couldn't take that back, you know?" I said with a very deep sigh. Kelly took another drag and sat there silently.
For as awkward as this exchange made me feel the fact that we were having it at all also made me boil with the kind of lust that really only comes on the fringes of the taboo and forbidden. Since I was pretty stoned, I got lost in thinking about what it would be like to actually sink my cock into my sister, and I realized that I was fully erect. As my brain started to focus, I heard that Kelly was talking again.
"...your hands on me. Your body against mine Pat." she was saying in a breathy voice.
"Huh? What Kelly?" I mumbled as I turned to see her with her pants around her ankles and two fingers deep in her fully wet pussy. She didn't bother to stop her narrative to let me catch up.
"I think about staring into your eyes the first time you push that pretty cock of yours into me. I imagine that the first time we do it would be way more sensual than the stuff we do when we get off together. It'd be slow. You on top with my arms around your neck. You'd pump into me slowly and we'd kiss." she said as if she was recording a message I'd listen to later and not sitting two feet from her.
I watched her finger herself as she described the way she wanted our first time to be and I realized that my heart was racing, and I was breathing heavily. I wasn't even moved to touch myself, I just wanted to focus on my sister describing in minute detail how she wanted me to fuck her.
Kelly's orgasm surprised me and when she looked over at me her eyes were damp with tears. She pulled her pants up and walked to the bathroom without saying anything and I worried that something had fundamentally changed in that moment.
I was far too stoned and confused to even get myself off, so I just ended up going to bed before Kelly even came out of the bathroom.
I woke up the next morning with a feeling of panic, worried that things would be awkward like they had been the morning after the first time we got off in front of each other. But when I went into the kitchen, I was greeted by a smiling Kelly making coffee.