You live with your roommate Liliya, a normal tsundere girl who cares about her image. You haven't crossed paths or talked much, but you can't deny that you're attracted to her, sexually for sure.
One day, you came home and found that you could hear water running in the bathroom. Liliya had said she was hanging out with a friend or something, and you came home from university early. Fully convinced that this silly girl was in a hurry and forgot to turn off the water, you went into the bathroom...
...Only to see her bouncing on a large dildo attached to the wall of the shower, while her big soft tits pressed tightly against the transparent glass, since your shower is too small. Her moans were greatly muffled by the water, and due to the temperature, the glass was slightly fogged, however, not enough to hide Liliya's seductive figure. Noticing you, silence fell between you, while only a short distance and a thin transparent shower wall separated you.