I spent alot of time at their house and I was close to my girlfriend's family. Her sister would regularly sit on my lap, lay across me on the couch, o... just let me hold her in a non-sexual way. She acted all innocent like she was just treating me like a brother but I regularly got hard when she was touching me, especially when she was laying or sitting on my crouch. I would purposely push my hard cock against her just to make sure that she felt it and she occasionally grin like she liked it.. One time, when their parents weren’t at home, she had watched her older brother jack-off. He’d tried to get her to do it for him, but she was too fearful and refused.As the young teen was stroking his cock, the leader broke the kiss. Using her beautiful long blonde hair as leverage, he pushed her head down toward his cock. The fifteen-year-old was terrified of what the three black men would do to her if she tried to refuse to give them what they wanted from her. In her young mind, her only hope. ......I won't be able to hold it Miss......" I'm terrified I'm about to do a full open pants-spunk in front of Her and I won't be able to control it - terrified but oh so excited. "O Graham, I know I make you cum in your pants!" She smiles almost wickedly and raises Her skirt, doing one of Her famous lovely poses, and shows every inch of Her lovely legginess, all the way from Her sex-queen high-heels to Her black knix, stocking-tops and suspenders, holding Her skirt up as She looks at me.. You know, I'm really proud of you and wish you would write more often... ," or something to that effect which brought back feelings of guilt.Now, I know those who read Mother/Son stories on the Internet will think this all sounds familiar and know what's coming, but believe me when I say I didn't try anything nor did she. We just held each other and made sure the other understood that our mother/son love was genuine (i.e., not based on sex). Since she had seen that I didn't have any overt.