Guy waited a couple of minutes.
He didn't make a noise, he just listened.
Then he heard the shower.
Still no lock, though.
Grinning to himself he slowly made his way towards the bathroom.
A small voice in his head tried to advise him not to go in there.
But the rest of him didn't care to listen.
He got this far, might as well keep going, he thought.
Worst case she'd throw him out. Best case... More fun to be had.
As silently as possible, he opened the door.
Inside he found Lou standing beneath the showerhead, her backside towards the door. The shower itself was pretty spacious, almost taking up half the room, with a glass wall and door separating it from the rest.
As quickly as possible Guy got rid of his clothes, and stepped towards the showerdoor.
When he pulled it open, Lou spun around, startled.
"What... What are you doing?" She cried out, her hands flying towards her breast and between her legs.
Guy just looked her in the eyes, and asked "Should I leave?"
He practically saw Lou's mind racing.
After a second or two, and a quick glance to his nether regions, Lou answered weakly, "N-no, you don't have to. The shower is big enough for two..."
And with those words she stepped aside a bit, making space for him beside her.
She then turned around towards the water again, slightly blushing, as Guy noticed.
Internally he was almost laughing, but tried his best not to let it show on the outside. He was fascinated at how shaken Lou seemed. The very woman who used to boss him around, make him feel less about himself for quite a while, and who constantly would make him feel small, was now acting like a shy girl in front of him.
Guy stayed where he was for a few moments, taking in the sight of her backside, water streaming down her curves.
Guy stepped forward so he stood right behind her. Then, without warning he put his hands on her hips. Lou jumped slightly, looking back at him, asking "What do you think you're doing?" She found him not looking her in the eyes, his gaze fixated on her ass.
Instead of an answer he let his right hand wander down, gently stroking her cheek.