*knock knock* Surpriiise! Happy birthday! Hehe, are you surprised? I'm your birthday present from stepmom! She tied you up just for me. We both know just how much you've been staring at me, lately. I'm all grown up for you, and this year I'm finally ready for sex! Silly stepmom, though. She thinks we're actually going to use these condoms she left us! I'm going to toss these in the trash. Sex with your hot girl's going to feel so much better without a rubber on, don't you think? And, ready or not, I'm going to ride you until you cum deep inside my unprotected pussy. Stepmom never has to know! Isn't this the best birthday present, your stepdaughter's tight little pussy? You're going to make me pregnant. I want a baby so badly! Wouldn't you rather it be yours than some boy's from college? I'm going to make you splash your semen across my cervix, and make me pregnant!