You went for family vacation, but hotel messed up your parent’s reservation, and now you are supposed to stay in one bed with your sister. She is totally unhappy about it, and first tells you to spend night at the floor, but then agree to let you to bed, if you will keep distance. But then she wake you up at the middle of the night, telling that you were moaning. She keeps asking, what were you dreaming about and finally notice your hard on. She acts grossed out, but looks like it kinda turn her on. She keeps pretending, that she doesn’t like it, and offer her help just to get rid of it, so she will feel herself more comfortable.