The following morning

Nick woke up first, having to pee. He walked to the bathroom, shirtless but in women's jeans. He sat down, feeling further emasculated, and while peeing noted something on the ground. After wiping himself, he stood up and picked up the black object. It was a lacy thong. Was Amber right? Did they go at it like rabbits? The knock at the door interrupted his train of thought.
"Are you done in there Nick? I need to go," Betty said through the door. He tried to pocket the underwear, but it wouldn't fit into his pockets. He shoved it down the front of his pants into the panties he was wearin, and then washed his hands. He opened the door and walked by Betty. She slapped his butt she closed the door.
"Don't do that!" said Nick.
"Sorry sweetie, it was too tempting. I'll make it up to you by cooking breakfast if you can give me a minute or two in here."
Nick went into the kitchen and poured himself a gas of milk before going into the bedroom to grab a shirt. By the time he was back in the kitchen, Betty was digging through the fridge, taking out stuff to make pancakes.
"Does one of you have a girlfriend? Sorry, but I saw the razor on the rim of the tub and the hair products don't seem to be for you," asked Betty
"My girlfriend lives here, but she's out of town for a couple days, seeing family" lied Nick.
"How does she tell you two apart?"
"She doesn't have to, Peter doesn't live here."
"Weird, last night you said it was 'our' apartment," replied Betty while stirring the batter.
"I must have misspoke. You know, twins and sharing and all that," countered Nick getting some plates out. Amber came into the kitchen, grabbed a glass and got some water.
"Movie night was fun. You two are good guys. Thanks for letting us stay," said Amber. Nick just nodded, wondering how he was going to talk to Megan about last night bathroom activities. Once everything was ready, Nick went to wake Megan up. She stretched as she was told that breakfast was ready, and the two went into the kitchen. After some smalltalk and eating, Amber and Betty left the apartment.
"That was an interesting evening, " started Nick.
"Yea, being a guy was very interesting. I ate more popcorn and I think I could drink more. Are you wearing my pants?"
"I am, Betty spilled some stuff on me. I actually took my shirt off, it was so wet."
"I thought you did. Did Betty make any moves on you?" asked Megan.
"Apparently, she is a lesbian. It looked like Amber made some moves on you though."
"She did. She threw herself at me."
"I know," Nick replied taking the thong out of his panties to hold them out.
Megan gasped and put her hand up to her mouth before replying, "I can explain."