We watched the two girls walk up the stairs, hand in hand.I looked over at Ken. "I think this is the ultimate definition of getting blue balled." Ken ...laughed at that."There's a baseball game on TV that we could watch and kill some time," I suggested to Ken.Ken didn't answer at first. Instead, he stood up and faced me. And then he took off all his clothes in front of me. "Your turn to get naked now." So I stood up and got undressed, and we were standing face to face, only inches away from each. ”Mom’s expression thawed and she dropped her arms. “Mark, I don’t know how to thank you for taking care of the girls.”“You don’t need to,” he said as his cheeks pinked. “I was happy to help.”“That said, I’m afraid I’m gonna have to ask you to leave. Joe can see you at school, but he isn’t allowed to go anywhere or have anyone over for the next month.”A cold chill filtered up from my guts. I knew Mark well enough now to see his frustration at Mom’s comment in the little wrinkles around his eyes.. I hope no one sees, our maybe I do... I've left the door to my office slightly open, some one walking by could see what I'm up to. How do you do this to me? You make me want more. You've made me so kinky, hoping someone will catch me pleasuring myself then offer to help. Maybe the whole office will help, shoving cock after cock in me, any where they can then they can all cum in my mouth. Mmmmm.... Pussy too. I love a dripping wet cunt that I can tongue fuck while I'm being double stuffed and. Then, I pulled back and asked him if he had anything left from his sister for me."Oh, mom, just look," as he stepped back and nodded down to his hard cock pointing up at me.I knelt down, taking it in my hand and sliding my lips around the tip as I began to suck on my son's cock."Mmm, Mom, oh, that's so good, really good. Oh, I knew I wanted this, I knew this would be go good. You suck me so well," he moaned.Well, I should, I thought, I'd started when I was twelve after all. The first time I.