Cassandra makes Jean eat his cum.

Jean looked right into her brother’s eyes as she jerked him, slowly, her hair rising and falling and splashing as she felt his hard thing in her hand. She bit her lip. She knew that she shouldn’t be enjoying this. But with Cassandra watching her like a hungry hawk and with Michael groaning with every stroke, Jean couldn’t help but enjoy herself, no matter how wrong she knew that it was.

Cassandra slipped into the water again, standing so close to both of the Murphy siblings. She couldn’t believe what she was seeing! Jeannie was ACTUALLY giving her brother a handjob! There was an enormous smile plastered across her face. All those hours of watching incest porn was finally paying off. Cassandra’s heart was racing at a mile a minute.

She leaned into Jeannie’s ear. “Look at the look in his eyes,” she whispered, glancing at the younger Murphy. “He’s wanted this for a long time. I bet he’s stolen your panties to masturbate into before, hadn’t he? Cmon, you know I’m right.”

Jeannie doubled the speed. She could feel him getting closer to the peak. Now her thoughts turned to all the times her underwear had disappeared over the years. It hadn’t been very often but it had happened. That couldn’t have been him... could it? No, it was impossible. But if it had, did she really care anymore?

Michael’s hips bucked and his hot white cum spilled out the top of his schlong. It coated Jean’s fingers, dripping down across her palm, spurting more and more every second, until her entire hand was covered in the stuff.

Cassandra grabbed Jean by the wrist and lifted her hand to her face. “Eat your brother’s cum,” she snarled, grinning from ear to ear.