Fucking her boyfriend's ass with a strap-on - Pegging

The boy lies face down with a pillow under his abdomen. The girl slaps him in the balls making him hurt and then jerks off his dick, to hit the balls again making him jump. The girl has a strapon on, and rubs the tip of the strapon against his ass. She puts a finger in his ass to dilate it and then puts some lubricant on it. Once ready, she shoves the strapon up her ass and fucks the guy vigorously, shoving the entire dildo up the guy's ass and fucking him mercilessly. She jerks the guy off again to continue fucking him intensely