I felt severe panic along with all the wonderful feelings Sis was giving me.Suddenly, I knew it was all over. My cock began jerking uncon- trollably a...d white, sticky fluid began squirting out with each jerk. I could no more stop the spurts than I could stop a sneeze. It was a wonderful feeling but so strange. I got a big gob in Sis's hair and down one side of her face before she got my dick back in her mouth. After that, she seemed to suck it like it was a straw leading to her favorite soda.. Sam moved to straddle him and leaned down to kiss his shoulder.Neither wanted to be the first talk, and for a short time that was ok, they could just look at each other. But it was brutally obvious that they wanted to say something to one another but the words just weren't there. For Sam though, the whole evening was worth this moment. The intimate connection, the look in his eyes, the way he carried her. She felt the flutter in her stomach in a way she never felt."I love you." They said in. I quickly placed my hand to cover her mouth and tongued her pussy lips for some more time. She had an orgasm right there and she moaned lightly. I got her my condom packet and she put her favourite flavour on my dick.I came on top of her and started fucking her in the pure missionary position. My cock entered her pussy and as she had an orgasm her pussy was wet. I gave some small thrusts and then after some time a hard thrust. She inserted her finger nails into my back and it hurt me. But I did. I whispered, "We should go to the office. There are too many windows up here."She agreed and we teasingly walked to the office. When we got there, I sat her on top of the desk. I finished removing her blouse and bra. My tongue danced on her nipples. My hands rubbing both tits, gently and fingering her nipples. She made me so hard. I kissed my way down to her belly button and I unbuttoned her slacks. My right hand began to finger and caress her wet pussy. I pulled her slacks and panties.