From the commissioner:

A look into Duncan and Calista's first time together. Duncan was having a wet dream and was making some noises that woke Calista up. She looked down at her brother and giggled at seeing him all stiff and hard. Calista remembered their sex ed classes and thought to herself that she should try to help him out. Of course, the feeling of something warm on his penis woke Duncan up. After a few moments of adjusting to the low light, he saw Calista on top of him, his dick inside her vagina, and she was rocking her hips a little. It wasn't long for the feelings hit the two, and with a pop, the pair were tied together with Duncan firing off ropes of semen into his twin sister. Their first time, and not going to be the last time either.

Art done by Aogami

Duncan and Calista belongs to me. AJDurai