A childhood friend who now lives in Kansai suddenly came to stay at my house! I ended up running into her while with my girlfriend, and the atmosphere became awkward... I thought she didn't see me as a man, but my jealous childhood friend mounted me and started vigorously moving her hips in a cowgirl position. She pounded me so hard that I ended up ejaculating deeply. From that day on, I was completely drained by my childhood friend's big-assed cowgirl rides, having my balls emptied out until she squeezed every last drop of sperm from my pussy...
