It all started when I caught my hot 18 y.o. stepsister masturbating in a shower and she kinda asked me to give her a hand with that. Oh, you bet I did help her out fingering her tight pussy and eating her out till she had the most powerful orgasm. Next day she returned the favor with a fantastic blowjob and another day later we fucked. It was a blast, her body is so nice and she is so tight and smooth inside. Now we are lovers.