Butt orgasm???🤔

Early this morning my SO woke me with sex. He enjoys giving oral a lot and he was using his tongue to tickle/lick my butthole and omg my butthole started to feel like it was vibrating or something. I thought you could only have a butt orgasm from stimulating the G-spot so idk what that was. It felt super good though. Anyone know what this was or experienced anything similar?

To all the ladies talking about it’s gross, all I can say is you biatches don’t know what you’re missing 🤣🤣🤣 and I feel bad for you. Don’t be jealous just cuz my mans oral game is on point and he loves to please his woman.