One by one our clothes came off - shoes, shirt, jeans and then finally, underwear. The first time I ‘lost’ and had to take down my underpants and... reveal my genitals in front of my friend - well, it was quite the experience. It was made more personally embarassing because I had a huge erection by the time I lost this final article of clothing. God, sitting across from my friend, my dick standing straight up peaking over the top of the table ... it was just an amazingly stimulating experience. “DINNER!” was all it took to get them out of their respective rooms and Fred had plenty of tacos ready for us this time.Actually, he cooked Sole, Chicken and Beef, giving us a choice to really make them to our own personal specs.I had a few of each, but the girls didn’t eat as much as usual, leaving plenty of leftovers. They cited needing to look their best at Canoble Lake Park.Later, as I headed up to my room, DD’s door opened, and she pulled me inside, saying ‘Ta-Da!’I don’t believe I ever. "Why not? I'm old enough," she replied. "I'm old enough for lots of things, big brother."Incestuous images danced in his fevered mind. Peter shook his head to clear those disturbing fantasies away... and, doing so, rubbed against her plump tits. He turned to stare at the girl as she hovered behind him.She held his gaze, her own gaze searching and speculative. "Anything I can do to make you feel better?" she asked in a purposely husky voice."What... what do you mean?" he asked. I carried her down and let her loose at the bottom of the stairs. She ran around to the grass underneath them and did her thing.I chewed on my cookie while they used the facilities, then broke the last of it in half, giving them each a piece."You two are going to get soooo spoiled today, you know that don't you?"I opened the kitchen door to the house and peeked in. Mom was already working, her hair up with a rag around it and a red and white checked apron covering her front. I went inside,.