Girls Masturbating Together

I discovered the joy of masturbation at age 12, and introduced my best friend to it. We would come home from school everyday and masturbate together. Rubbing our clits on a pillow between our thighs.
We did of course end up exploring eachother one night. First kissing & touching eachothers breasts. Then E buried her head between my legs, and began licking my clit, wow! it was amazing!
My mom was upstairs, and I was afraid of making a noise, but she kept on licking and sucking me, I was moaning and panting - thrusting my hips onto mouth,
She began riding the pillow between her legs, & groaned each time she sucked my clit. Her moans grew louder and I felt my pussy tightening around her tongue, she told me she was cumming and that was it... I came immediately with her tongue inside me.