Best Lower Abs workout ever

I love to lie flat on my back on a hard surface. I get the most amazing abdominal muscle contractions along with heavenly sensations in my ass. I could go forever. I just have to pull my toys out in order to get other things done. Never want to stop. My butt is buzzing just thinking about it.

Source: https://www.aneros.com/best-lower-abs-workout-ever/