The professor jokingly asks if my ass is still full of his cum from the previous night. After 10 minutes or so of slow masturbating the professor tel...s me that he is still horny and asks if I would be interested in going back to his place for another round of sex. I sit there considering his offer. He adds that he would like me to fuck him this time. Being a horny 20 year old I quickly said sure. As with the night before we go to the master bedroom and get undressed. We sit next to each. ” I watch as his eyes trail over me. My face is flush and pink and my eyes qre pleading, soulful and dark. His gaze warms me as it travels down my body. My nipples hardening as he looked longingly, moving further down my body his face changes, His look, his hunger, mirrors my feelings. The predator, his prey, both reduced to base feelings and desires. “Come doll,” grabbing my hand he pulls me up to my feet. To his room, he turns me away from him. And strips me of my meager garments. Leaving me. There came his elder sister- the same age as me, beautiful, slim, and sexy. I complained it to her and went back home.Since then we used to communicate often. Once I complemented on her looks and she was very shy. Then I said she looked damn hot. This made her give a smile and run away in the house. Knowing that no one was in there except her, I went in, closed the door and followed her to the living room. I asked her if I could kiss her once. She straightly refused. I requested too much for. His whole body had changed, and everything felt confusing and new. His vision was flanked by soft, wavy blonde hair. He had to flick it aside or push it over his shoulder to stop it getting in the way.And his body was petite, willowy and delicate. He had the body of a lingerie model, simple as that. Slim waist, flat belly, a perfect pair of tits (though he hadn’t seen them without a bra on yet), and a cute little butt with gorgeously smooth legs.He did what he was told. He pulled his knickers.