Most memorable sexual experience (Part 1). Read and tell me yours!

Meet girl at bar. Call her "Jill." Most attractive girl in the room. Introduced to her boyfriend. Call him "Jack." Disappointed because I was hoping I had a chance with her. Still share some drinks with them as to not be awkward. Turns out we hit it off pretty well. Hang out with them for a few hours. Bar closes. They invite me back to their place for drinks. I accept. Get back to their place. Jill asks, "Can we fuck you?" Not sure what to expect but feeling outgoing. I tell them that they can. They ask me to undress. Feeling a little awkward as they both watch me strip down. No one else undresses so I say, "Now you." Then I'm told to shut up and turn around. Jill zip ties my hand together behind my back. Jack zip ties my ankles together so that I can only only move in tiny shuffles. Feeling very scared and nervous now, being that I am tied up naked in a stranger's home. Jill pulls her panties down from under her skirt and has me kneel on the floor. She sits down spread-eagle in front of me and buries my face in her pussy. Tells me to keep my face down and my ass up. I eat like my life depends on it. Lose track of my surroundings. Suddenly feel Jack's wet cock in between my butt cheeks. Jill scolds me for losing my pace and grabs a handful of my hair. Very painful. The head of Jack's penis penetrates my asshole. First time a man has ever been inside of me. I'm scolded for not arching my back and my hair is pulled harder. My saliva and Jill's juices now dripping down my chin. I start slobbering. Jack goes balls deep in one thrust and stays there with his hips pressed against my ass. It's very painful at first. I'm trembling now but trying to focus on eating Jill. I start to ease up. Jack pulls all the way out, spreads me open with his thumbs and pushes all the way in again. It starts to feel good after he does this a few times. My cock starts getting rock hard. Jack starts thrusting fluidly now. He builds up to a quick and steady pace. He fucks me hard. Each time he thrusts into me I hear his balls slap against mine and a huge amount of pre-cum feels like it's being pushed out of me. I'm throbbing. Jack and Jill tell each other that they're both about to cum. Jill is pulling my hair hard now with both hands. She starts moaning and squirming. Jack starts to swell and pulls me into him by my hips. I feel like I'm the rope in a game of tug of war. Jack thrusts all the way in and stays there. It feels like gallons of hot cum are being injected into me. This feels amazing. He finally pulls out and a lot of cum pours out and drips down my balls. My asshole quivers in his absence. Both stand up and tell me to stay as they walk towards the bathroom.