So wrong.

Last weekend marks the first time I have ever done anything that I woke up and thought "OMG that was way too far", My husband and I went to a family wedding, My sister who is 14 years older than me with her being the oldest of 5 and me by far the youngest had attended also and had a bit too much to drink, She tripped and fell on the walk home and when we got back she went and showered.
My husband and I wee messing around when she came out of the bathroom and was wearing just a robe, She came and sat on the couch and a couple minutes later had laid on he side and passed out, My husband who was sitting by her feet had motioned me to come to him, I did and we started messing around, I was leaning down and he was reaching in my dress pinching my nips, I knelt down and he pulled his pants to his ankles, We both looked at her and he went "Whoa..." and held his hand up, I leaned over and her robe was riding up because she was in the fetal position and her rear end was partially exposed.
I had my husbands ** in my hand and looked up at him, I whispered "Why are you so hard?", He smiled and leaned back looking at her and said "Oooohhhh I don't know", I said "Really?, My 35 year old sisters one ** cheek makes you that hard?", He shrugged and I started sucking him, He had his hand on my arm and her foot was right beside his leg, I don't know why I did it but I took his hand and put it on her foot. I don't know but if there was room for one more ounce of blood in his ** I am pretty sure that's straight where it went.
So I am sucking him and stripping off my dress, He is massaging her foot and then runs his hand up her leg, He slid her robe up and had his hand on her hip and it was strangely ** to me, I was letting him squeeze her cheek and stuff while I sucked him and then he slid his thumb down and started rubbing her, I paused for a second but started again and then oooohhhh **, My sister wiggled, We froze and he pulled his hand away, She grunted and rolled onto her back and rested her knees against the back of the couch, The main problem is that my sister is 35, Has had 3 kids, Is divorced and I know for a fact she would have been hugely embarrassed, but....Noting was really showing except her legs.
That was when my husband was like "Hmmmm", He looked over her knees and her robe was pretty open, She had one hand above her head and one across her stomach, I looked at him and he looked at me, I shook my head no but he reached over and untied her robe. My sister is just over 5 feet tall, Average built and has humongous ** which she blames on having kids since she is the only girl in the family with them, She says they ballooned with the first pregnancy and never went back but they are saggy and stretch marked and she actually says she is having them done and downsized but anyway that's not the point.
I kept sucking and stroking and I watched out of the corner of my eye as he reached over and tugged on her robe exposing on of her great big **, I actually stopped and we both looked, Holy moly, Her ** was big and hanging sort of to the side but her nips, Wowzers, I haven't seen them in the last few years since she started having kids but they are massive, Mine are like little pink pencil erasers and hers are like the big purple jube jubes, Like the size of your thumb to the first knuckle, I have never seen anything like that, Big, Hard and wrinkly and brown.
My husband was hard as a rock, I don't know if he has ever been that hard and I thought he was hard before, I looked up at him and he was looking at her, He reached over and I stopped, He looked at me ad I whispered "No", He tilted his head and I said "Absolutley not", He pulled his hand back and I went back to sucking him, I watched out of the corner of my eye as he put his one forearm against her knee on the back of the couch and his hand on her other knee and slowly spread them, I felt my heart racing at the thought of not only my husband seeing another womans ** but my older sisters **.
I had no idea what it would look like since she has been divorced for a while and has pushed 3 kids out of it but I think we were both pleasantly surprised, She has almost a full innie with nice pink lips and just a little bit of inner lips and her ** sticking out at the top just like mine and she keeps just a small V of nicely trimmed hair, I was still not sure I like the idea of him seeing it but it was too late to go back now, My husband was rocking his hips and holding my head with one hand and then running his other hand up and down her inner thigh. He was dribbling pre come and I could taste it which was making me more excited and then she tightened up her ** cheeks and rocked her hips letting out a little sigh and her lips spread letting her wettness come to the surface, My husband slid his thumb across her lips and then sucked it and I swear I dripped a little on the floor, He put his thumb on her ** and just softly rubbed it while I sucked him and he kept pulling his thumb away and sucking it to taste her and make it wetter.
My sister was breathing a little heavier and my husband was tensing and I was rubbing myself and literally dripping on the floor I was so wet and then it happened, My husband held my hair, Came in my mouth, I came in a mini flood, Like my hand was dripping wet and my sister took a deep breath, rocked her hips and a little dribble came out which my husband wiped off her lips and then tasted. My whole body shuddered and I sat down on my knees, My husband grabbed his ** and squeezed out a big drop of come and then wiped it on her ** lips, I said "Scott, No, Not ok" and he just smiled at me.
I got up on my wobbly legs like bambi on ice and went to the bedroom, He was 3 steps behind me and I turned and said "WTF Scott, Seriously, You wiped your come on her?", He said "oh it's fine, I didn't put any inside her". I calmed fairly quickly and we went to bed, the next morning I woke up and went to the kitchen, My sister was still passed out and covered with a blanket, I kissed my husband and asked if he covered her, He said "Yes, Wanna see something?", I said "uuuhhh, Ok", He pulled out his phone and showed me 28 pictures of her before he covered her, I said "Geezus Scott", He said "Can I keep them?", I said "Don't you EVER show them to ANYONE" and he promised he wouldn't.
We had a good day and night and then the next night my sister left, The whole thing was so wrong but I guess no one knows anything so it will be fine.