I (ftm nonbinary) have always considered myself to be someone who wants to be in control. Who never 100% trusts anybody. Who always needs to be able to get away, if necessary. Which is why, until very recently, getting restrained by anybody was always a hard limit.A year ago, I met this guy on a dating app, who turned out to be really into dominating, hurting and humiliating me. – And I love it as much as him. We became good friends and regular play partners. From the beginning he told me how much he likes to restrain people, while also making clear that he is into me either way and enjoys doing the things I am comfortable with doing. But the longer I got to know him, the more I saw how much I could trust him, the more curious I got. From the beginning I liked him holding me gently with his hands - by the hips while fucking me, sometimes briefly holding my wrists - and the more often we did that, the more I thought how much nicer it would be if he restrained me and had his hands free to do other stuff.One day I told him that I am thinking about it and would like to talk about how to best explore it. "Oh my god, I didn’t expect this.. This is so exciting", he answered to my confession. "Yeah, let’s talk." I knew that he mentioned leather restraints at some point. When I asked him about it, he smiled, went to his drawer, and showed me a whole box of leather restraints that I had never seen before. I started touching them, feeling how nice and soft they were. Playing with them, and looking in his eyes, I already felt myself getting horny."I would start with just restraining you on one arm...and see how that feels for you", he told me, while watching my face closely. He touched my knee while talking, slowly moving his hand up my leg. "What do you think?" Feeling myself getting wet at his touch and thinking about the restraining, I whispered: "Yes..."We got on the bed, both still dressed, and he took one of the leather restraints, binding my left wrist on his bed frame. I just laid there, waiting for what would happen, while he watched me. "How do you feel" he asked "would you like to wait a bit...or for us to move this a bit further. Get naked?""Yes, let’s get naked...and...I want you to restrain my other hand, too" I told him. "Are you sure?" he asked, softly. "Yeah", I said. "I will say stop if it doesn’t feel right."He got off the restraint for a moment so I could get off my shirt and bra, then he bound both of my hands to the bedframe. He also got his clothes off, then he pulled down my pants. I felt myself starting to moan and shake already...being completely at his mercy turned me on so much more than I would have thought. He looked at me. "You little slut"...he whispered..."you have been holding back on doing this for a long time, haven’t you? I am sure if I reached for your pussy it would be all wet already...and your dick is half erect already too, huh?" He pulled my shorts down too and looked at my growing penis. He reached for my pussy, and moaned feeling that I was already soaking. "Damn...I want to fuck you so bad..." he said, while he pushed a finger inside of my cunt. "You are such a filthy boy; you turn me on so much. Spread your legs, as far as you can."I did as he told me while he pushed his fingers deeper inside of me. I wanted his dick inside of me, him being on top of me, so much. "Please fuck me" I moaned. He just laughed and said: "I want you eager little whore to cum on my fingers first. You will get a second one, while you suck my dick." He crawled on top of me, pushed his dick into my mouth, bent over my face. Wanting to touch his butt, but not being able to, turned me on even more. He fucked my pussy with two fingers now. He spit on my dick and started jerking it off with his other hand. "God, you eager whore, you need me to fuck you so bad, do you? And you want me to hurt you too, right?" He started slapping the insides of my thighs and as I started to moan with his dick in my mouth, he slapped my cock and pussy too, pulling my hips up so my genitals were fully exposed to him.He got a third finger in then and fucked my pussy harder. I could feel an orgasm coming and then my pussy pulsated on his hands and my whole body shook. He got his hands out and softly stroked my legs. Getting his dick out of my mouth, he sat down next to me on the bed, touching me whole body gently.I kept moaning under his hands, wanting more, being desperate for more. Looking in his face I said. "Restrain my legs too, please." He smiled, then he got another pair of leather restrains and fixated my legs, so that I was spreading wide over the mattress. Lying there like that, while he looked at me, made me so horny that I came a second time without him even touching my genitals. "Look at you" he said, starting to laugh. "We really should have done this earlier...turning you into the helpless, horny slut that you were always supposed to be."He took both of his hand, pulled my pussy lips open and spit into my pussy. "God, you need my cock, you little desperate slut, you need to be filled, right?" He positioned himself between my spread legs. "Tell me what you are..." he said, while he pushed against my vagina just a little bit.I moaned very loudly a couple of times, unable to speak, him stroking my dick while he pushed against me made it even more difficult. "I am your helpless dirty whore, ready to get filled...I love being exposed to you like this...please, fuck me." He kept pushing inside of me a bit more, while softly slapping my tits. The more he pushed in, the more he slapped. "You eager little cunt, you dirty slutty boy"; he whispered. "It’s great how much you want to be used, how much you want to be insulted...you get off on that so much, do you? Tell me.""Yes", I moaned. "Yes, I want you to treat me like your fucktoy." His dick was inside of me as deep as he could, and as he kept stroking my dick, he whispered: "Open your mouth, you filthy fucktoy." I did as he told me and while he bent over me, he spit in my mouth. Some of it not going in, he rubbed it all over my face. Then he took his hand and kept slapping my tits, harder over time.He started thrusting inside of me now, moving slowly at first, then going faster over time, while he kept slapping my tits with one hand and kept spitting on my boobs, my face and in my hair. I could not hold back on my moans and another orgasm ran through my body in the exact same moment he got his hand off my tits and started pulling my hair. "Oh god yes, fuck me and hurt me, take me" I screamed. He bent down and bit my shoulder, and as I thought that I couldn’t be able to come another time, it happened again, with his teeth deep inside of my flesh and his hand pulling my hair hard. I heard him moaning and felt him shaking on top of me, too, while he came deep inside of my cunt.He stayed on top of me a couple of moments, breathing, then he laid down next to me, cuddling me, kissing me. “Do you want me to set you free again?” he asks me. “Or would you like to stay here for the next round?”