He recognized that look and the way her body had tightened around him. However before he could give her an answer, he too heard that familiar noise and he froze over completely, eyes wide in horror. Luckily Vert seemed more than on top of the situation so he nodded quickly as he stumbled to get dressed again after the left.

Even so he still had a raging boner so even as she distracted their parents he made sure to keep his front covered as he made a dash for his room. Once inside he slumped against the door and let the reality of what he just happened, sink in. He'd had sex. With his own sister. She'd even climaxed because of him.