My ex gf would let me dry hump her in bed when we were spooning. It was early stages of our relationship and we were getting to know eachother sexually. I was ALWAYS hard around her. She was blonde, a bit chubby, 18 yo and her ass was perfect. Lots of perverts were hitting on her during the day and it made me kind of horny. She used to wear hot tangas when we went to bed. Holding her tight from the back, smelling her hair and dryhumping her ass in tangas and between her thighs - the first cumshot. Covered her whole ass cheek.
It’s called “dry humping” and yes, it can be extremely stimulating when you ejaculate. This guy bust WADS of loads across her sexy Shapely ass. High intense splashing that made him hiss and pant as he exploded. Good shit.