Is it normal to lick bellybutton lint out of women's bellybuttons?

Ok so, It all started when I went on a Tinder date three months ago. I met up with this chick and we had a blast. Then, I brought her back to my place and we got down and dirty, (you know ;) ) but when she took off her shirt, her bellybutton was full of lint. I remember how it smelled, how it looked, the whole shebang, it was hypnotic. I slowly put my tongue in it and it was orgasmic. The chick was weirded out and left in a hurry, but I was left with a new obsession. Is it normal?