First time playing with a racer fan♡ He's so gentle… but that thing is really so big and thick

Hello~ everyone安安
This time it's my first time meeting a racer fan to play...
I originally thought a guy who often speeds would be hasty and rough, but it was completely the opposite.
He was so gentle from start to finish, kept asking if I was comfortable, his movements slow and careful, letting my whole body relax.
But… when it really went in, I was really shocked.
The size was bigger and thicker than I imagined, hitting so deep all of a sudden that my legs went weak.
Gentle and huge appearing at the same time, the contrast is just too intense…