My Stepbrother Helps me Stretch my Ass for my first ever Time having Anal Sex

My stepbrother, the sexy Latin hunk, has always been a bit of a wild card. He's been eyeing me for weeks now, but I never thought he'd go for it. Today, he finally made his move. "I wanna help you stretch your ass, sis," he said, with that wicked grin. I gasped, my heart racing with a mix of nerves and excitement. "You wanna fuck me?" I stammered, my voice barely above a whisper. "Not yet," he chuckled, "but you're gonna love how I help you prepare for it." He was right. His fingers were magic, slowly and gently pushing into my tight hole. I felt a tingling sensation, a mix of pleasure and pain. He kept working me, adding more lube, and I felt myself opening up. My big ass was taking it like a champ, but he was right, it was a new experience. He wanted me ready, and I was more than willing. His cock was massive, and I was nervous about it, but my stepbrother was patient. He didn't rush me, he took his time, making sure I was comfortable. When he finally pushed inside, I gasped. It was intense, a little uncomfortable, but also incredibly hot. He started to move, slowly at first, then faster and harder. I felt every inch of him, my big ass milking his cock. I was squirming, moaning, and before I knew it, I was squirting, my body convulsing with pleasure. My stepbrother was right, this was something special, and I was loving every minute of it.