One of the best sexual adventures I ever had was with a young friend of mine named Paul. He was the son of a divorced female friend I knew, and I had let him stay overnight with me, if she had a hot date. After we got comfortable with each other, he started asking me a lot about sex, so I told him I'd answer any question he asked. He asked a bunch of stuff about anatomy, gender differences, etc. I also showed him some hot pictures, from my personal collection, (girlfriends I'd had over the years.) He asked me if I had any of guys, so I showed those to him too. He was particular fascinated with guys giving/receiving oral service. In the course of our conversation, I asked him if he wanted to give it a shot, and he did. After a fair amount of experimentation, he wanted to know what sex with females was like and asked me if I could get one of my girlfriends to come over. So I told him I'd see… I had one particular female friend in mind, who would definitely be interested. She was a true blond, in her mid 30's, nicely built, largish chest, and a VERY attractively trimmed down below.I had zero idea if she'd do anything with us, but I decided to give it a shot anyway, and invited her over for a Friday night date. She had no inkling that Paul would be there at all. The doorbell rang about 8:00; I opened the door to the room, and she stepped in. She looked beautiful in a pale gray, silky dress that buttoned down the front. She looked a little surprised to see my young friend sitting on a chair across from my couch. But, just as natural as anything, I introduced him to her and offered her a place where I had been sitting, behind a sturdy coffee-table. She still had zero idea of what was going on, so I walked into the kitchen, poured her a nice (large) glass of wine, and brought it back out to her. She said, "No thank you", but as a handed it to her, she took it anyway. I sat down on the couch beside her and started some small talk.I told my young bud that my girlfriend is 't