During a steamy threesome, Amanda's best friend unknowingly pushes her diaphragm out of the way as she rides on top of Mark, causing him to ejaculate deep inside of her. The messy mix of their juices and the diaphragm lubricant coat Amanda's insides, creating an instant desire to feel fuller. Without any hesitation, she straddles the defenseless Mark again, forcing his already massive erection back into her sensitive womb as she wildly grinds on him.
