I was meeting my friend at his mother’s house which was a fifteen minute bike ride away. Anyhow I got up to the house and I open the fence and walk into the backyard. His mom is laying out naked on a chair. Her legs open wide and breasts big and plump soaking up the sun. Even her pussy was getting sun. I slip into the house and decide to watch his mom for a bit. Before I know it I’m jacking off and I’m so caught up in the moment I didn’t realize that his older sister was behind me watching my reflection. My friend had told me that he could hear his sister masturbate through the walls at night. She walks up and smiles at me.
“Seriously? My mom?” She says.
“Please don’t tell.” I beg.
“I won’t but I want to see you do it.”
“Do it? Here?” I ask.
She grabs my hand and takes me up to her room and closes the door pulls my pants down and says “jerk it.” Hesitantly I start pumping my cock. At that age my cock was about 6 inches long. The more I pumped it the more I noticed she was rubbing her pussy outside of her jeans which were getting wet. She hands me one of her pink and blue panties and tells me to cum on them. I cum three full pumps of thick white cum onto the panties and she takes them from me and sniffs it, licks it and puts them on and pulls them away showing me my thick cum stick against her pussy lips.
“No I won’t tell anyone.”
That was not my last sexual encounter with his sister.