Harry has been flirting with Remus since he moved in with the werewolf. Remus didn't know if Harry realized what he was doing or not but it was driving him crazy. Soft brushes here, lingering touches there, constant sexual innuendos and of course, Remus' worst nightmare (or dream come true depending on your point of view) a half naked Harry walking around the house, usually clad only in boxers.
If Harry didn't know what he was doing, with the way things were going Remus would end up showing. He wasn't sure if he could make it through another meal with the way he practically made love with the spoon. Just thinking about it was waking up a part of his anatomy he'd rather stay sleeping until he was upstairs in the bathroom to relieve himself. While Remus was contemplating his odds of surviving another day with the object of his desire, Harry was upstairs getting upset.
All his careful planning and teasing didn't seem to be working. He tried it the way Tonks and Ginny told him too. Hermione said just be himself. He should have listened to her; this slow seduction was driving Harry crazy. It seemed he was getting nowhere. No, today he was going to be his usual jump-in-head-first self, consequences be damned. He was going to make Remus see his way.
Harry made his way downstairs and stormed into the kitchen. He walked in front of Remus and before he could say anything, Harry swooped in and crashed his lips onto the man he'd been wanting since his fifth year. Now with Voldemort gone, Harry saw no reason to hold back his feelings.
Harry swiped his tongue across the older man's bottom lip, fully expecting to be pushed away. He wasn't expecting the eager response. Not that he was complaining, not at all. When the kiss became too much and they needed to breath they pulled back and looked at each other with goofy grins.
"I'm glad you finally decided to act on all the flirting you've been doing. Do you have any idea what you've been doing to me?" Harry pushed forward so they could both feel their erections. They both moaned in want and lust.
"I think I have a good idea. Why don't you come with me upstairs to make sure I got it right." Harry said with a coy smile. He turned and made his way upstairs, Remus watching that beautiful arse swaying left to right before he followed the young man upstairs. At least now Remus knew what Harry had been doing. Now he was going to show Harry why it's dangerous to flirt with a werewolf.