When I was 15 my neighbors across the street took in a Japanese foreign exchange student named Mika who was two years older. She was very cute, and spoke decent, but broken English. At first I assumed that she was shy and innocent, but quickly found out she was very sexual. We'd hang out and play video games, and she would talk to me about her sexual experiences. I loved hearing about them, and one day she was telling such an erotic story that I grew hard.
I was in athletic shorts, so there was nothing I could do to hide my erection. Noticing it right away, Mika put her hand on it, and started to play with it over the shorts. I begged her to reach underneath, but she stroked me this way for a while before finally obliging. As she fondled my dick there were several times when I had to force her hand away to keep from cumming.
Finally she drew her mouth to my thigh and started kissing. She kissed and licked my balls while continuing to stoke me. She then took my penis in her mouth, sucking the tip while her hands caressed my balls. She deep-throated me and tightly squeezed my balls. I immediately exploded, sending wave after wave of cum into her mouth. She swallowed, and then slowly peeled her lips off my cock, ending the blowjob by french kissing my tip. The blowjob lasted less than two minutes, but it was the most intense I ever had. Another time she even tongued my ass, the only time I've ever had that done, but that's a story for another time...