Can you read my handwriting?”“I’m very good at deciphering the scrawl that you call penmanship.”“Okay, okay, enough about my bad handwriting... Come in the den and I will answer your question about positions.”We went into the den and sat on the couch. I figured I would start with the basics. “There are four positions that are the most popular. Missionary, cowgirl, reverse cowgirl, and doggy. You need to be familiar with those four. Other positions are variations and fun to experiment with.” I. Jeff immediately turned around to see his son watching them from the hall. Tyler was completely shocked when he saw his dad's face. He dropped the glass of tea and it shattered on the floor as he yelled at them "Dad what the fuck is going on?"Jeff's reaction was quick. He pulled himself out of Vickie's snatch and grabbed the covers to hide his wet boner and Vickie's gapping pussy. Jeff was completely shocked to see his son standing there. He yelled back "what the fuck are you doing here Tyler?". I said to the silent one, “Hey Darren, you can zip up and stuff. Like I said, I used to do the same thing. Joey and I did stuff practically every day for months before I got into doing stuff with Suzi.”The three of them turned red and Darren adjusted is position so his open fly couldn’t be seen.I said to Scott, “Your sister has pretty nice tits. Pity, she only lets dick heads like Chris see them.”Dwight asked with extreme interest, “Did you touch them?”“No, she came out of the bathroom naked. Both of them glanced over into the same mirror into which she'd looking. From their vantage point, they could seem her there in the hallway on all fours, watching them.Roger quickly stood up pulling his long, thick cock out of Robin's gaping cunt, they both dashed out into the hallway and confronted me. To her even greater surprise, they were indignant at her for interrupting them - instead of the other way around. Roger immediately began chewing me out for being a snooping cock hungry.