The front of his shorts came down, then Becky snapped the elastic under his balls. Panic mingled with lust and made his cock jerk upward in front of h...s sister's face. She smiled, wrapped both hands around his shaft, and opened her mouth for the bulb of purple flesh. He bit his tongue to stifle his grunt, but Becky slurped loudly. He gave her the universal sign to be quiet and stared at their mother.When Jason glanced back at Becky, she was looping her fingers around his sack, above his balls,. "Every delicious inch". The brush danced across her inner thigh and made a feint towards her pussy before I withdrew it. This caused her belly to flinch. "Ticklish?", I asked with a grin."N... no"."Then I wonder what that reaction was?", I said, starting on her arm. "Maybe I should try another tool - the brush might not be the right one".She giggled as I worked. "I know what tool!"My laughter joined with hers. "I'm sure you do, and that's part of why I love you - for that dirty mind of. I leaned down, began to kiss her neck, and moved my way down to her breasts. I kissed and sucked on each nipple while she moaned. She was nearly naked except for her thong panties. I kneeled down in front of her and with both of my hands, slowly slid them down her soft legs. Kissing her thighs, I moved upward until my mouth was at her pussy. She shaved hers except for a small patch of hair above her clit. I kissed it lightly and stood up."Ben, I need to sit down. You're making my knees weak,". ..So my hand went back down and started rubbing. She pulls my throbbing cock out of my pants and starts stroking. It looked huge in her tiny hand. “ mmmm big cock” she moans. Her body pushes down mine and she hovers over my cock smiling. Her mouth opens and she starts sucking. Her warm mouth felt amazing, her eye contact was perfect as she gagged herself on my shaft, slurping and stroking. I grabbed her pulling her back up to me for a kiss. “Let go big bed!” She smiles. I pick her up she wraps.