Her Friend Caught Us

I've always been into pee sex. Fortunately, my wife likes it to.
She doesnt drink, but likes to let me drink. And we both pee on each other, clothed or nude.

So, one time, we were on holiday and her, then single, girlfriend came along.
I thought she was okay, not attracted but just liked her company.
We did a roadtrip. staying 2 nights and then move along to the next location.
The friend sometimes mentioned 'i will go out now, so you 2 can fuck'.
We laughed, but we used that time to fuck :).

One night the three of us were drinking in a bar, she met a guy she liked and we laughed, wishing her fun to go get fucked. We drank some more and went to our hotel.
We had a hotel room with a terrace and wife and i both smiled.
Feeling a bit drunk, horny and the need to pee, we went on the terrace and there was pissing, fucking, licking, sucking, pissing. My wife went to the shower as i tried to clean things a bit.
Suddenly the friend is on the terrace, whispering she was home early and saw what we did.
I was shocked. not expecting her, but she pulled up her skirt and said to drink now. if i wanted, as she started to pee. I watched.. got on my knees and let her pee on me.
she tasted different, but still horny, i got hard again.
As she finished, she smiled, winked and said to clean myself. as i did, she left.
I went into the shower, my wife loving me having a hard dick again and we fucked again.

Next morning her friend said nothing, but last year she told me her bf and her are into pee sex too ;)