Sadly they decided they needed more privacy or more comfort, and left. I suppose that was the turning point. Seeing two lithe, wet, glistening bodie... in close contact, catching a glimpse of two hard, thick, blood-engorged cocks, wondering where they were heading hand in hand, had me excited. I am not sure that my heart was beating any less fast or that my hands felt any less clammy than when my nerves were getting the better of me, but this was now for very different reasons. I was stepping. You might have seen a few of the posters around the building for the big accounting conference in Chicago in January, right before the term begins. I was wondering if you two would be interested in going. There is a special promotion for students, only $25 for the registration. I will be presenting a paper and we could carpool there to save on gas. I know the two of you are more than study partners so you could share a room if I understand your relationship correctly.” The two nodded at that.. My cock could not grow any longer or larger as it strained to fill her womb up to over flowing I reached up and tested the berries hanging down from the front of Lisa’s breasts and twisted them to see if the fruit was ripe. The way her pussy clamped on my cock and she moaned told me that they were indeed ripe and ready.I slapped, squeezed and twisted her tits as she slowly raised and lowered her hips onto mine. Getting used to my length is not difficult for most women, but as my sister told me. I want to share you cock with mother, can I?”I was stunned. I was shocked! Ravina forgot to suck my cock as we both stared at our daughter who looked straight into our eyes. Ravian was first to compose herself. “Ok darling, you know I have waited for my brother, your father for so long! He is your father and my lover. Now that you have chosen to be a part of our family love, I dont have any objections. You are a woman first and our daughter afterwards. So you are welcome into this taboo fuck.