I got aggressive, I swirled my tongue around his head while periodically taking it into my mouth to suck on for a bit. I began to drool all over his c...ck, adding lube for me to stroke his cock harder and faster. It didn't take long before I felt him tense up and unload several shots of cum into my mouth. The taste was even worse than before, and even though I wanted to, I couldn't swallow it. I just continued to lick and stroke his cock, letting his cum run from my mouth and back onto his. The twins chattered away in their first-class compartment, but the presence of a stern-looking, ascetic man in a dog-collar, prevented them from discussing what they really wanted to talk about.They had, truth be told, discussed it for hours before in the privacy of their bedrooms in Sloane Square. How, on reaching the ripe old ages of 16, both would be permitted to play ?mistress-slave? games with their talll, dark, handsome Uncle Rick.Rick – his real name was Richard - at 35, was five years. Even the days he is in town. She does not get attention from her husband.I asked how about her sex life. To which her reply was not good. I felt sorry for her and told her the same. I offered my company to give share her thoughts whenever she wants. She was not pleased with that answer. I tried multiple statements to convince her but not much helped to make her feel better.She informed me that she reads sex stories online and masturbates to make herself feel less lonely. I pulled her towards me. The tests took the better part of the day so when we were done we were both exhausted. After supper we both went to bed early to catch up on some rest. Well, that was the intention but as soon as we hit the bed our hormones took over and we made slow and passionate love. An hour later we were both sound-asleep and did not stir until the next morning.Three days later we got called down to the guidance office. The counselor wanted to go over the results of our tests. She brought us both into her.