The door opened at his soft tap and he opened the door wider when he heard his sister answer."Come on in, Kenny," she called, "mom left just a few min...tes ago so we're safe."Ken entered the room Dannie shared with her older sister Mary and walked across the carpet to where he saw his younger sister's blond curls bouncing above the back of the chair at her computer desk. "I know mom left," he said as he reached Dannie and looked down to see that she'd pushed the top of her pajamas up to expose. ‘Oh, God, Kim, that feels too good…I’m…I’m gonna come!!!’ Bobby’s words, intended to warn Kim, instead spurred her to greater efforts. She’d gone this far, she was going to go all the way! She had to! She had to learn what it felt like to have him coming in her mouth! She began moving her head up and down more rapidly and tightened her lips around her lover’s erection while her hand began to roll and squeeze his balls. In seconds she could feel the pulsations of the mighty organ grow stronger.. I mean, his… Ah, equipment alone would probably be enough. After all, that's what first attracted me to him, but…" She licked her index finger and started teasing her left nipple with it in little circles.I couldn't take my eyes off her finger. I flushed with warmth. Tingles ran over my thighs. I crossed my arms, gently rubbing my aching nipples. "Yeah, but…?"Sandy looked at me and smiled. Her finger traced a line down to her pussy, and rubbed it once. "But what he does with his tongue is pure. My mouth was full of what had been a three day buildup of sperm, my tongue coated with the thick, salty load. He stood there panting, his hand absentmindedly stroking my hair. I swallowed down what I had in my mouth even with his cock still between my lips."Damn, that was fucking amazing." He whispered as he pulled his softening cock from my mouth. A trail of spit and cum trailed from the head. I could feel a small trail of saliva and cum on my chin and I quickly wiped it off and licked my.