I moved in with my wife's stepdaughter, and seeing my teenage daughter's panties and her nipples without a bra on made me feel sexually aroused despite my age, so I took pictures of her with my smartphone. My daughters were also aware of my rock hard cock, and they were in agony. We invited each other to have sex next to my sister while she was sleeping, or touch each other in the kitchen when no one was looking, and when the other family members went out, we immediately went crazy.