The Art of Learning (illustrated letter)
Then she started to rub his penis with the flat of her hand.
By now he didn't object but pressed his body more and more into her hand and moaned a lot and kissed her on the neck.
Then she pulled back slightly, and when he tried to renew contact, she said: "You know, Bill, I want you to do a strip for us."
He objected, referring to my being there, but I watched carefully how she began applying very gentle and subtle pressure on his groin until he was hard again. And then she relaxed.
Well, soon he was in desperate shape, and I saw that my aunt was right: he would agree to anything.
To make a long story short, that night I saw my first completely naked man (he was well built), had my first exposure to cunnilingus and analingus, and was shown all the different ways to stimulate, tease, and eventually jerk off a man.