She jumps back in surprise and shock, standing with her back against the wall like she is hiding from a crazed killer. But it was a mere second before her curiosity lures her back. She slowly positions herself to get a view of her naked and obviously horny father. He is turned sideways and leaning toward the wall of the shower, with his weight on his left arm. His right hand is gripping his rigid cock, slowly sliding up and down his soapy shaft. She feels her skin flush with excitement. Her pussy instantly warms and sends a small tingle of electricity up her spine. Her nipples begin to harden to stiff little peaks.
She is so conflicted at this point! She is peeping in on her father like some kind of pervert. This is a total invasion of privacy. But she can’t help her body's reaction. As she watches him leisurely stroke his cock, she runs a hand under her t-shirt and presses against her pussy. She is quickly getting very hot, and can feel her juices beginning to flow.
Then she reaches up and rubs her erect nipples through the thin white t-shirt fabric. Her nipples are pushing hard against the thin fabric of her sleepwear. The very sleepwear her Dad had asks her not to wear because of the affect it has on him. Suddenly everything is very clear to Cathy. Her Daddy is beating off in the shower with thoughts of her wearing this provocative sleepwear! After all, she had just paraded through the den in front of him, clad only in a skimpy t-shirt and no panties.
The more she considers it, the more she is sure. He went to take a shower probably after seeing her nipples get hard over the course of the evening. Maybe he is fantasizing and remembering the night we had sex. Maybe he left the bathroom door ajar so she could see his naked body. Maybe he is thinking about ripping off my t-shirt and panties, and slamming his big cock into my tight young cunt again, she thinks to herself.
All at once she is shocked, embarrassed by though thoughts. What if he is only missing Mother, she thinks? She doesn’t want to make a foolish move. She tries to dismiss the thought he is masturbating while thinking of his daughter. But what if he is? Is that so wrong? And is it so wrong that she suddenly wants to make his fantasy a reality? She is more than a little turned on by that thought.
She wants to keep watching him, keep lusting after his gorgeous cock until he blasts cum all over the shower floor. Better yet, she wants to join him in the shower and let him blast his cum down her throat. She struggles with the thought, but finally chickens out and abandons that plan. She sneaks back to her room and grabbed a towel before heading to her own shower.