Serena Sterling in Step Daughter Has Problems Vol 3 (Parts 1-2)

I walked into the bathroom and caught Serena with her fingers buried in her cunt. A pink crop top was the only thing she wore; no panties. She looked at me with wide eyes, lips parted. "Can you help me out, step-dad? I'm so fucking horny." She lifted the shirt, letting her bare tits bounce free. Resistance was a joke at that point. She dropped to her knees, tugged my cock free, and slid her wet mouth down the shaft. I wrapped a hand in her hair and asked if she planned to keep this between us. "I won't tell anyone," she mumbled around my cock before swallowing it again. She stood, bent over the sink, and glanced back. I teased her first, just to be sure. "You're positive?" "Yes," she breathed. Her pussy swallowed me on the first thrust. When I asked about her ass, she shivered and whispered, "Even if it's my first time." I eased into that untouched hole and felt how impossibly tight she was. She clawed the porcelain, cursing, but pushed back for more. I switched to missionary on the edge of the sink, pussy first, then back to her ass. Every stroke squeezed me like a fist. When I was close I pulled out, shoved my length into her waiting mouth, and came straight down her throat while she sucked every drop. She was still tasting me when she stepped into the hallway—and right into Cory. "You smell like sex," my wife said flatly. Serena admitted it. Cory said she was booking a sex therapist, and the next morning Serena found herself in Dr. Amiee's bright office wearing a white crop and a tiny jean skirt. "I can't stop thinking about cock," Serena confessed. "Even my step-dad's." Amiee smiled like she'd heard it all. "Then don't repress it." She crossed the room, kissed Serena hard, and the session changed shape. Serena's shirt came down; Amiee licked slow circles around her nipples before they traded places. Serena spread wide on the desk, legs shaking while the doctor's tongue worked faster, flicked harder. Both came once, then again, scissoring on the edge until their thighs were slick. Amiee wiped her mouth and smiled. "Next appointment, we add the gym. And maybe your step-dad joins us too."