Step-mom surprises me with a birthday gift of pleasure on my 18th birthday

On my 18th birthday, my step-mom gifted me with a special present that I could never have imagined. She's a bit of a MILF goddess, with her curvy, fat body and a big, thick cock that she's been dying to show me. As soon as she walked in the door, she wasted no time in dropping to her knees and unzipping her pants, revealing her massive, throbbing member. I was taken aback at first, but then I couldn't resist the urge to taste it. The sensation was overwhelming, and I found myself getting lost in the moment as she continued to pleasure me. But that was just the beginning. She then took me from behind, fucking me hard and deep in doggystyle. The sight of her mature body bouncing as she rode me was a sight to behold. And when she finally came inside me, it was a creampie that left me breathless. This is one birthday gift I won't ever forget.