He catches one of the boys checking you out..

Harry:
“Babe!” Harry shouted from the living room, “Can you bring us some snacks?” All the boys were over playing video games. You made a bag of popcorn and brought it out to them. You felt eyes burning into your backside. When you turned around, you saw Zayn quickly look away. You weren’t wearing anything too revealing, just shorts and a long sleeve shirt. You plopped down next to Harry, ignoring Zayn’s stares. Out of the corner of your eye, you saw Zayn looking at you once again. You felt Harry tense up next you. “You okay?” you whispered to him. He looked at you and pulled closer, practically on top of him. Harry cleared his throat, making Zayn turn his head. “Hey babe, will you get us some drinks?” he asked, sweetly. You knew he was up to something, but you got up anyway. As you stood up, Harry smacked your butt and said, “Mine.” He was looking directly at Zayn, whose cheeks became red with embarrassment.
Liam:
You were in your bedroom changing to get ready to go out to dinner with Liam and the boys. They were all downstairs waiting for you. You must have been taking longer than you thought because you heard a knock at the door, thinking it was just Liam, you ignored it. “Hey (Y/N) are you almost read—…,” Niall started to say. When he saw you in only your bra and underwear, he froze. You tried to cover yourself quickly, but it was no use. You heard Liam come up behind him, interrupting the rather awkward situation. Niall’s expression changed from embarrassed to impressed. Liam saw his friend checking his girlfriend out, “Dude! Go away!” He grabbed Niall by the shoulders and pushed him in the other direction. Liam looked at you, silently asking you what happened. Before you could respond, you heard the rest of the boys congratulating Niall on see you half-naked.
Louis:
You were at one of their concert sitting in crowd. You were having a good with Lou and Lux dancing around. All throughout the concert, Harry kept looking over at you. You tried to wave it off as if it were nothing, so you just simply smiled and went back to dancing with Lux. It seemed like whenever he needed to find his place during the show, his eyes landed right on you. Halfway through the Twitter questions, Louis noticed what Harry was staring at— you. When Harry looked at you again, Louis said, “Hey Curly, why don’t you keep your eyes on that granny over there!” The crowd erupted into laughter and you did as well. Harry instantly became pale, knowing he got caught, but he laughed it off. To embarrass him even further, Louis did the whole “I’m watching you” motion with his hand. Harry got a talk from Louis afterwards about getting his own chicks.
Niall:
“Niall!” you whined walking in the recording studio’s break room and sitting down on his lap. “What’s wrong?” he asked, stroking your hair. “I don’t feel good,” you said, burying your face into his neck. Niall picked you up bridal style and laid you down on the couch. He told you he had to go sing his solos and that he’d be back. You got yourself comfortable and started to drift off. You heard Louis talking to Liam about something. You listened very closely and heard they were talking about you. “I still think she looks hot, even if she’s sick,” you heard Louis say. “What did you just say, Lou?” Niall asked, looking at the older boy. “Um, nothing,” he said, sinking back into his chair. “No, (Y/N) is not hot. She’s beautiful. Now Paul was you to go in to record,” he said, gesturing towards the door. Liam just sat there feeling awkward. All you could do was smile in your sleep.
Zayn:
“Come on, Zayn! Please?” you begged, standing in the pool. You were begging your boyfriend to come in the water and swim with you, but he wouldn’t budge. “No, (Y/N)! I’m not!” he said, crossing his arms and standing his ground. “Fine,” you said, turning around. You heard a familiar voice scream, “Cannonball!” and there were multiple splashes in the pool. “What the hell!” Zayn said when he resurfaced from being dunked underwater. Niall, Harry, Liam, and Louis all looked at him, laughing. While they were laughing, you had managed to get out of the pool. You laid down on one of the lounge chair. “Liam! Man! Knock it off!” you heard Zayn yell, pushing Liam underwater. Little did you know, while you were getting out of the pool, Liam was staring at you. The. Whole. Way. Not to mention, his mouth was wide open. You could see Zayn fuming. This was going to be a long day.