Afternoon Affair

I'm a young man who's in a happy, loving heterosexual relationship. I've had this secret fantasy of giving a blowjob to a mature man. He'd know my fantasy, keep my secret, and agree for me to explore with him on a Saturday afternoon. I'd go to his place where he'd sit back, relax, while in silently discover his dick. I'd slowly but surely bring him closer to climax, until I watch him cum on me, on him, everywhere...