A colleague is visiting his house and he sneaks into the children's room to see the older sister, who is sleeping in a bunk bed. The older sister, sleeping on the bottom bunk, is touched and wakes up, but is too scared to make a sound. She squirts and eventually has sex... The younger sister, sleeping on the top bunk, wakes up and gets turned on by her breathing and the shaking of the bed... In one night, they enjoy a delicious threesome of sisters on a bunk bed.