It's time for a check up at our Doctor's office. This time we both need to give a sample. They want a sperm sample from my son and a urine sample from me. My son goes into the bathroom first to give his sperm sample. I stand outside in the hallway for several minutes listening in to try to tell if he's doing anything. I can't hear much. So I finally knock and ask him how's he's doing. He tell me that he's not sure if he's doing it right. Eye roll. "You mean you've never masturbated before?" I let myself into the bathroom and confront him. He's nervous and anxious and really doesn't know what he's doing. I ease his nerves some and offer to pee in a cup to get my sample over with. I use that time to show him mommy's pussy and try to encourage him that everything is going to be ok. Afterward I help him with collecting his sperm sample by stroking and sucking his cock until he cums into the cup. Mommy always knows best.
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