Try to get Lilly and Holly to join the party

I guess I should check on Holly again. I don’t want her to miss the party and I think it will be fun for her too if she were there.
Me: Brad, I’m going to check on Holly again and I’ll be down later. I yell after him to make sure he heard me
I think I hear him yell something back but I’m not sure as the door to the basement is already closed. I then turn and make my way back to Lilly’s room to see if they want to come to the party. This time as I near Lilly’s room, I see that the door is cracked open and I can hear the shower running in the bathroom across from her room. I then start to wonder what they were doing in there if they were both in there or where Holly could be if they weren’t. Who is in the shower and is anyone in the room? I could sneak into the bathroom and get a sneak peek of Lilly in the shower, but what if it’s Holly. I’m not sure I would want to see her naked or that she would be too happy if she caught me. Then again, Lilly might not be too happy if she caught me looking either. Although, why would Holly need to take a shower here? I could check the room and see who is in there, but why was the door locked earlier? I’m a little confused on what I should do. I can take a look in the room and see who is there, sneak into the bathroom to see who is there, or I can turn around and just go to the party.