I Cheat With Her Sister

I want to confess I was staying in my gf house whom she share with her older sister.
that night I was drunk and horny in my mind I was going to my gf room but in reality I went to her straight sister room I get on the bed under her cover and slowly pull her underwear
And start to lick her pussy
She was sleep and I was drunk to realized I was eating my gf sister pussy
Until I feel her hands grap me by my hair and push my face deeper in her wet pussy
She wrap her thick thighs around my head to keep me in my place
I was so into it and just so screwed to realized what going on
But she in other hand she was a wake and sober
She was enjoying my tongue fucking her pussy She didn't say anything
I kept going and going til she cum on my face and mouth
And then she just went back to sleep
Leave my to pass out between her legs my face still shoved in her pussy
And in the morning when my gf her sister find us in that position I was the one who cheated I was the bad one when the straight or what she claimed sister was a victim of my drunk self even she was moaning and humping my face like crazy horny bitch
Enjoying my tongue