Think I should check on Jessica

As you are walking closer to the bathroom door. You hear Jessica's voice. "Damn it, what the fuck is that sticky stuff on my chest!" And then you hear the sound of water being turned on in the shower. You realize that it is the best to peek now because she will not be able to see you while she is facing the wall with the shower room, which doesn't have a curtain but a transparent glass door. This would provide the best time for you to peek. Just by thinking of her firm tits and the innocent look on her face makes your member starting to grow harder. You try to turn the door knob, but it seems that the door knob is doing a good job keeping you out.

"Shit! Why would she lock the door at this particular moment" you think. The second time you turn the knob, a miracle happens again, the door is unlocked now! You are shocked for a second but recover right away. You slide your head inside the bathroom and scan the room. You see the beautiful, slender figure of you sister once again. But this time, she is totally naked. The naked body of your sister turns you on and your member has erected to a state that it never achieved before. Suddenly Jessica starts to turn around. The next thought of yours is "NO! please don't see me." Now, shes completely turned around, but it seems that she is unable to see you standing at the door looking at her through the widely opened door gap. You are amazed by the fact that she isn't able to see you.