She got totally naked and laid on her bed, she needed some sexual contact. She then yelled 'I'm ready"! Rob was shocked, did she really follow through...with his demands. He sat wondering if he was really going to follow through with going up stairs to fuck his sister. As Rob thought about what he was going to do, their dad had pulled into the driveway. Rob started to very quietly started to walk up stairs to his sisters bedroom. When he gets to her door, it's open just a few inches. He quietly. A quick glance showed Tyra was doing pretty much the same. Tyra was an inch or two shorter than Catlin, with amber eyes and dark brown hair cut just above her shoulders. She was slender but her very narrow waist made her slightly rounded hips and ass appear more curvy than they actually were. Her breasts were firm and actually slightly larger than Catlin's, but Catlin decided she compared well. Both of them were very good looking.For that matter everyone she had met was very attractive, both. My head was fuzzy but we’d been at Amy and Ali’s place for a few drinks the night before. I heard movement as our hosts entered the room. I quickly put my hands over my cock, especially as Amy had a camcorder in her hand.Amy nodded at Heidi, gesturing Ali to do something to her. Ali quietly stooped down over Heidi and took hold of her.Ali gently lifted Heidi forward and unhooked her bra, slid the straps off her shoulders and pulled the garment away. Heidi’s breasts sagged either side of her. If I was some slut who just wanted you to fuck me I probably wouldn’t have done anything with you after the day you picked me up but I’m not like that. I watch how you treat people, hear the things you’ve done in your life and I think about all the things you could teach me. There just aren’t very men around like you. Then there’s the age difference and I’m so confused right now, I don’t know what I should do.”I said, “Can I make a suggestion?”“Please do.”“I think we should stick to the plan.