I am really sorry to hear that!" How could you," she softly asked?"What? I couldn't hear you s*s, speak up please."Evie forced herself to speak louder...and repeated, "How could you?" I don't know what you are talking about."She took three steps and grabbed the hanging costume and shook it softly at me. "This, Dale! How could you fuck me last night like you did?" Was that you?" I said in mock surprise. "Wow s*s, you have a damn fine ass!" How could you fuck your own sister?! That's ... that's .... K” he said and stood up, unbuttoned his shirt and took it off. At the same time I slipped off my shoes and socks. I took off my shirt and slipped out of my trousers. We both stood there in our underpants. We looked at each other trying not to stare at each other’s crotch. Then he shrugged and pulled his pants down. I had seen his cock before but it was much more impressive in the flesh! He had a good hard on and his cock jutted up from its little nest of pubic hair. I stepped out of my pants. "Mmm," she moaned, as ran her tongue up the underside of his dick, all the way up to the head, his dick throbbing hard as she tickled the spot just below the head with her tongue. Tim's groans grew even louder, as he felt his cum boiling in his balls, his hips gyrating slowly, "oh fuck mom, I'm gonna cum if you don't stop." Kelly pulled her tongue away, smiling at him, "ahh, someone wants to fuck my pussy huh?" Tim looked at her, slowly nodding. Kelly smiled wider, grabbing the box of XL. I made french toast for your special day." I thought that's what it smelled like in here." He replied. "Thank you!" So? How does it feel to be eighteen?" Actually... Kind of different to be honest." Yeah? How so?" I don't know. Just... a little freer, I guess." Well, I must say, you look amazing." I blurted out, completely distracted by his convincingly feminine look."Yeah? You like?" He asked, as he raised his arms and presented himself to me."I love it." I replied. "I think 18 really suits.