In the Shower, Listening

Ok, this happened to me around one year ago. I had been mountain hiking with two girls friends of mine for some days, I'd say 5 hard walking days if I am not mistaken. In the whole trip, we had had the opportunity to get a shower only on the first evening, as mountain huts were very very simple. So, to make a long story short, on our last day we arrive in this village, and manage to get a room in a sort of hostel, and we all look forward to some long-expected shower. Now, the showers were not divided between men and women, and there were only two. So, I get in my shower just a little time after one of the girls got into hers. As you may well guess, I had not been masturbating for the whole trip (not even on that first evening!), and for me 5 days without cumming is a HUGE period. So I started showering, shampooing, and slowly masturbating, when I heard that my friend in the shower beside was unmistakingly self-pleasuring too, as I could well hear, together with the water music, her breath go steadier and faster. I guess she was directing water on her hairy pussy, and caressing her with the other hand at the same time. Or at least, this is what I fantasized she was doing while I masturbated to the best orgasm I EVER had in my life. And what is more, after she came and went out of the shower, I was able to jerk off again to another orgasm, almost as good as the first. Unforgettable!!!!!