I am about to do something he has never seen me do before. His eyes widen and he takes gasping breaths as he watches me take his fingers, one at a tim..., into my mouth. I suck and lick the first one clean, then the second, then the third, slowly and sensually, without breaking eye contact. He moans as he watches, barely able to take my taunting any more. I climb on top of him, straddling him, still looking into his eyes, and slowly, lightly, barely touching him, rub my pussy from the base of his. As I showered I got the feeling I was being watched. Out of the corner of my eye I noticed someone was peaking thru the door, it was my son. Just as I turned to bust him he was gone. I was plenty mad and could not wait to finish and go yell at him. Then the more I thought about it the more turned on I got. I decided to pretend that I did not know anything and go on as normal. I knew my son was at that akward age when his body is changing and he must be curious. I also knew he had a full on man. She laid her head against his chest, and he rested his chin lightly on her shoulder and wrapped his arms around her.After a while he said, simply, “Wow.” She nodded her head against his chest. He pulled back, then, and looked at her. “Did you really like that? “ She nodded again, her face serious. He continued, “Really? All of it? I mean, you were crying, and I thought....”She nodded again, more vigorously, saying, “I know. When you started pretending the class was watching, I. I was really sucking his cock, and not just sliding my mouth up and down on it like the girls usually did, and it didn’t take him very long to cum. I soon felt his cock throbbing and the condom was expanding with his big load of cum.He held my head in place and said, “Damn, that’s the best blowjob I’ve ever had. You were actually sucking on my meat and you must have enjoyed it too. I even felt your lips on my bare cock below the condom. I can see that your little dick got hard just from sucking.