I know I was very wet and was close to orgasm, when I felt my son in law’s warm palm at my naked buttocks. I was amused and felt aroused. I didn’t...move and let him do it. Seeing no reaction from my side, he picked up courage and started probing my ass crack. I let out a startled gasp and pretended to get away. But he clamped my buttocks and pulled me towards his cock. Knowing it was a sin, I wanted him to stop but it felt so good, as he wouldn't let me up. After a while I couldn't help and. “Come with me” She said, giving me a knowing type wink and getting up from her seat. I followed her to the very back of the vast library watching with fascination her ass cheeks moved about like two ferrets fighting in a sack. “I think that what you are really after can had in here” She said with a smile showing off her dazzling set of perfect white teeth. Unlocking a side door which led into a broom cupboard sized room she beckoned me in and locked it behind us as she said, “You want me to. I instinctively wanted to thrust with my hips, but I knew this was pointless and would probably get me in trouble to boot.After teasing me mercilessly with the pussy I couldn’t have, my Mistress ordered me onto my hands and knees on the floor. She lubed my ass and violated me with a long butt plug. It felt amazing, but was humiliating at the same time. In this compromising position, she took several pictures of me. Then, she had me stand while she looped my leash around a door handle, from. "You spilled some slut!" He grinned devilishly and took the cum from my tits smearing it all over my face. I moaned loudly as he smeared his sticky cum over my face, humiliating me further. After about 20 minutes of hard, brutal pounding, my black-cocked lover was ready to cum. I felt his gigantic cock swell a bit more as he stiffened. "Oh God! Ohh yes, give me you cum, you black bastard! Ohh, fill my cunt with your hot cum!" I screamed. And he did just that. I felt his cock explode and his.