Milking stepbrother's cock! But that remains our secret

I actually just wanted to take a shower and then I felt the hot pressure from the shower head on my clitoris. That immediately made me completely hot! So I wanted to carry on, but then my stepbrother suddenly came in. How embarrassing! Was he watching me do something? And then he just wanted to watch while he wanked his cock and I said it was ok. But then I was soooo keen to suck his thing. I just couldn't control myself any more. His cock was so beautiful and big and so delicious. And then I continued with the shower head and had a mega orgasm. Of course I wanted him to cum in my mouth too. :-D OMG, I hope that will remain our secret!