Dallas's friend Dom had brought over a strange singlet to his house before they planned on heading out. Dallas laughed looking at it. It was made from mesh, the rear assless with two elastic bands resembling a jockstrap. "Unlock My Addiction" was written over one of the straps.
"Put it on!" Dom said, pressuring him.
"Guess I can try" Dallas, said, shrugging. He knew Dom had an eye for him, the singlet something his friend would love seeing on him. They had never hooked up before, both being tops.
As the singlet snapped into place, he felt a strange itch inside his crack as the elastic bulged his cheeks out more prominently. He walked out in front of Dom, body on display in the garment. Dallas felt a strange emotion welling inside him as he turned, his stomach settling once his gaze lay on his friend.
Dom rose, approaching Dallas and placing a hand on the fabric. Dallas felt his heart jump, an attraction to his friend he'd never felt before. His mouth suddenly felt dry, forcing him to open it slightly. In a moment Dom's lips were around his, the two trading breaths as Dom took control leading Dallas to the bedroom.
Dom stripped before pushing Dallas down onto the bed ass up. Dallas didn't know what to expect, a strange compulsion to lay there prone taking control. He felt Dom's cock using the skin of his ass to quickly grow hard before it was finally ready to go in. Dallas trembled in anticipation as the cock lined up in the crack, splitting the ass apart before he felt it at his backdoor.
Dallas felt pressure building as Dom's weight pressed more and more into him, until finally Dallas felt his hole let go. In less than a second Dom's full cock was inside the hole, Dallas's mind blinking out of existence for a second. When Dallas came back he found himself moaning, riding on the waves of each thrust, pleasure exploding through his entire body from each push. He couldn't move, too busy savoring the moment as Dom pounded away at his hole pushing his mind further and further into oblivion.
As his ecstasy grew, Dallas felt something shifting in his head. He loved existing in this state, feeling his body used and forced to the endless edge of an orgasm. His natural instinct took over, overriding any rational thought as his body grew more and more devoted to its use. Dom finally cried out, shoving his member fully in one more time forcing Dallas's cock to jump in the singlet, cementing the addiction in his mind.
Dallas didn't care how he would get back to that state, he just wanted to feel used again. Once they finally made it out to the bars, Dallas spent the night in the back rooms having his brains fucked out the entire time. That's all he ever did from that night on.