u/Lonely_Chairs

For me it started when I was in my preteens. I was actually forced into it by my step sister. She was a senior in high school and had gotten a dog she wanted to take to college. He was a German shepherd from a rescue that was about a year old. She quickly found out he was super hypersexually active and would try to mount just about anyone, especially her. She never let him and was trying to train it out of him but she refused to get him fixed. Well anywyas She used to tease me a lot because I didn't really have any friends and that would also lead to her hitting me. Nothing crazy just how siblings slap each other and she was also physically stronger than me so she knew she could usually overpower me. Me being a curious kid that just had a teen girl move in a few years prior was naturally pretty attracted to her and would frequently sneak in her room to get her underwear. I'm pretty sure she knew but never told my dad but she never outright caught me. Well one day she's gone and I'm in her room going through her dirty close and I hear the door swing open and i panic and pull my gym shorts up. She sees what I'm doing and goes ballistic. She pushed me on the bed and starts hitting me. I barely had time to react. Well the dog hearing this commotion comes in and sees us "playing" and decides to try and mount her while she's on top of me. She pushed him off but he came back. At this point she decides whatever and gets off of me and locks the door with me, her, and the dog inside. I'm sitting on the bed now and still visibly hard. At least all 3 inches is. She laughs and says she's gonna tell my dad unless I do what she says. I of course agree without thinking and she tells me to take my clothes off. So now I'm standing there hard and naked and she's deciding what to do with me. She pulls her phone out and takes a few pictures for "insurance" and then says "so you like my underwear?". I just stay quiet and she reaches up her skirt and pulls off the pair she's wearing and says open your mouth. I refused so she pinned me down with her knees on my arms and held my nose with her fingers until I of course open my mouth to breathe and then she shoves her panties in my mouth. She eventually pulled the string from my gym shorts and used that to tie my hands behind my back and then stood me up and bent me over her bed. It was about then I felt a tongue slide between my ass cheeks. She goes "oh I guess he wants to play". I'm panicking at this point and then I feel his legs straddle me and then something wet start poking me. She let him go on for about 5 minutes. He never really got anything but the tip in but by the time he was done i had precum all over me. She lets me up and says he's not finished and I of course see a huge red cock double mine hanging down. Sh made me lay down on the floor and brought him over my face. She pulled her underwear out of my mouth, pulled out her phone and started recording and said suck it. I refuse and she said do you want me to send my friend the video of him trying to butt fuck you. I said no and just kind of started licking it while she held him in place and filmed. At one point she said you can do better and shoved me up onto it further and said it's not allowed to leave my mouth. I have a huge respect for women giving oral now because by 5 minutes in my jaw really hurt and then he let out a whimper and I felt it start pulsating. He backed away and she let him so I sat up with cum dripping out of my mouth and went to spit and and she said no. You better swallow. So now she had a video of me swallowing her dogs cum and uses it to get whatever she wants. I kind of enjoy playing with her dog now as that's what she made me do when she came home from college and she finally got him to fit in my ass. Its kind of a never ending cycle cause she had tons of videos and pics to black mail me to do it again and then just gets more blackmail. I'm pretty much just her entertainment now and do whatever she thinks humiliates me most. Recently she's taken to chastity and me cleaning her after she pees. I'm also pretty sure I've eaten a cream pie or two becasue she's Woken me up in the middle of the night to make me clean and it doesn't taste like her pee

For me it started when I was in my preteens. I was actually forced into it by my step sister. She was a senior in high school and had gotten a dog she wanted to take to college. He was a German shepherd from a rescue that was about a year old. She quickly found out he was super hypersexually active and would try to mount just about anyone, especially her. She never let him and was trying to train it out of him but she refused to get him fixed. Well anywyas She used to tease me a lot because I didn't really have any friends and that would also lead to her hitting me. Nothing crazy just how siblings slap each other and she was also physically stronger than me so she knew she could usually overpower me. Me being a curious kid that just had a teen girl move in a few years prior was naturally pretty attracted to her and would frequently sneak in her room to get her underwear. I'm pretty sure she knew but never told my dad but she never outright caught me. Well one day she's gone and I'm in her room going through her dirty close and I hear the door swing open and i panic and pull my gym shorts up. She sees what I'm doing and goes ballistic. She pushed me on the bed and starts hitting me. I barely had time to react. Well the dog hearing this commotion comes in and sees us "playing" and decides to try and mount her while she's on top of me. She pushed him off but he came back. At this point she decides whatever and gets off of me and locks the door with me, her, and the dog inside. I'm sitting on the bed now and still visibly hard. At least all 3 inches is. She laughs and says she's gonna tell my dad unless I do what she says. I of course agree without thinking and she tells me to take my clothes off. So now I'm standing there hard and naked and she's deciding what to do with me. She pulls her phone out and takes a few pictures for "insurance" and then says "so you like my underwear?". I just stay quiet and she reaches up her skirt and pulls off the pair she's wearing and says open your mouth. I refused so she pinned me down with her knees on my arms and held my nose with her fingers until I of course open my mouth to breathe and then she shoves her panties in my mouth. She eventually pulled the string from my gym shorts and used that to tie my hands behind my back and then stood me up and bent me over her bed. It was about then I felt a tongue slide between my ass cheeks. She goes "oh I guess he wants to play". I'm panicking at this point and then I feel his legs straddle me and then something wet start poking me. She let him go on for about 5 minutes. He never really got anything but the tip in but by the time he was done i had precum all over me. She lets me up and says he's not finished and I of course see a huge red cock double mine hanging down. Sh made me lay down on the floor and brought him over my face. She pulled her underwear out of my mouth, pulled out her phone and started recording and said suck it. I refuse and she said do you want me to send my friend the video of him trying to butt fuck you. I said no and just kind of started licking it while she held him in place and filmed. At one point she said you can do better and shoved me up onto it further and said it's not allowed to leave my mouth. I have a huge respect for women giving oral now because by 5 minutes in my jaw really hurt and then he let out a whimper and I felt it start pulsating. He backed away and she let him so I sat up with cum dripping out of my mouth and went to spit and and she said no. You better swallow. So now she had a video of me swallowing her dogs cum and uses it to get whatever she wants. I kind of enjoy playing with her dog now as that's what she made me do when she came home from college and she finally got him to fit in my ass. Its kind of a never ending cycle cause she had tons of videos and pics to black mail me to do it again and then just gets more blackmail. I'm pretty much just her entertainment now and do whatever she thinks humiliates me most. Recently she's taken to chastity and me cleaning her after she pees. I'm also pretty sure I've eaten a cream pie or two becasue she's Woken me up in the middle of the night to make me clean and it doesn't taste like her pee