The first time I did this it was her idea. i really didn't want to, but since she learned that her best friend's husband did it for her friend she wanted to try it too. I didn't want my GF to feel she was missing out on something I could do for her because I was selfish. I agreed to do it. When i finished cumming I lost all sexual desire but I had promised. I forced myself to put my face in her messy crotch. Cum was running out of her hole but the smell of sex was strong and I immediately got excited again. So I began to lick and suck her and she went crazy humping my face, pulling my hair, and clamping her thighs around my head. She had a mind blowing orgasm and I was proud! Yes, I felt so nasty for doing it and even more nasty because I liked it. I was totally hooked and she nearly always got another orgasm after we fucked. Best day of my life!