Alinde was startled for a moment, but she was so aroused by her father's hard cock, her sister, and the taboo nature of the whole situation, and she couldn't stop what she was doing. She looked at her father, her lust visible in her eyes. "We wanted to help you, daddy. We know you haven't had sex since... since mom, and we want to make you happy. You've been very distant and grumpy lately, and we want you to be more relaxed." She bit her upper lip nervously. "A.. And we never, I mean we haven't..."<br/><br/>She moved herself upwards, straddling him, still holding his cock, while her other hand moved to fondle Aimee's firm behind. "We talked it over daddy, and we want us to be our first. She looked at her sister smiling before looking back to David. "Both of us, please daddy?"