Louisa and Regulus had been dating for almost two weeks by the time Slughorn's party came round. They had decided to keep it quiet, after all a Gryffindor and a Slytherin dating, would be hot gossip. The truth was they both found it oddly exciting. Walking down the corridor Regulus would slightly trip Louisa to catcher her eye, enjoying the slight blush that would colour her pale cheeks. Likewise Louisa would, deliberately bump into him or slyly brush her hand against his. They would sneak out after hours and meet up for a snog, in various broom cupboards, empty class rooms and the astronomy tower.
Lilly and Sarah knew that Louisa, was up to something, but no amount, of probing would make her admit. For now Louisa wanted to keep Regulus to herself. After all Slughorn's party was in two days, and they had agreed, that was when, they would come clean and admit, to their relationship. Louisa knew what would happen then. Other than people talking, she would be chastised for going, out with someone from the rival house. Regulus would undoubtedly face worse as Slytherin house, was known for being less than forgiving and, they would see his dating an 'outsider' a betrayal.
Louisa had however started to mend the bridges with Sirius. They now spoke when their friends were not around, and would help one another with their school work. Something Louisa would find distracting whenever Regulus was in the library. Thankfully he understood that they were friends in the same house. However, they had both been surprised that, Sirius had not worked it out, given that they spent allot, of study time, spying the over the top of their school books.
Sirius however thought that he was making progress with Louisa. Their friendship was returning to normal, and he was able to spend time with her again. Erica however was less than pleased, she was down right pissed. She had taken to spying on them as they studied in the library, meeting Sirius outside of almost every lesson, and shooting Louisa snooty comments and dirty looks. Louisa however remained oblivious to Erica's bitchiness. Sirius tried to ignore her needy behaviour, by focusing on, working out what, Louisa wanted in a boyfriend. With the help of his friends, they each took turns to, quiz the Ex-boyfriends. With the information collected, Remus wrote it down for comparisons to drawn:
Arkie Alderton:
Hufflepuff. Dated for 7 weeks, in fourth year. Overly confident in his none existent abilities. Quite romantic.
Nightshade broke it off because, she found him boring.
Bertram Aubrey:
Ravenclaw. Dated for 6 months at end of fourth headed git, really pushy! (must take every opportunity to hex!) broke up as 'she refused to put out!' GIT!
Stamford Jorkins:
Gryffindor. Dated for 4 weeks in fifth year. Funny bloke. Great chaser and team player.
Both decided they better as friends.
Eric Munch:
Hufflepuff. Dated for 10 and a half months, during fifth year. Really good looking! – you sound gay Wormtail! Funny. Plays beater on house , smart, occasionally in trouble.
Broke up when she caught him kissing another girl.
Mitchel Ackerley
Git! Needs to hexed on a daily basis!.

On another peice of parchment Remus wrote down the qualities that Sirius should have, to be in with a chance.
Sirius Black (Padfoot)
Would be an advantage if played Quiddittch
Should be good looking
Could be an occasional trouble maker
Should be smart
Should be funny
Should be thoughtful

Must not cheat
Must not be pushy
Should be romantic
Should not be overly confident

Sirius studied the list carefully as he waited for the doors to transfiguration to open. Out of the ten points Remus had deducted from their investigation, Sirius processed seven. It certainly did not fill him with confidence, or his friends from the looks that they shot him. Sighing he slipped the parchment into his robe pocket, and slipped into deep thought. He was so deep in thought that he did not realise that Erica had, slipped her arms around him. It was the nibbling on his ear lobe that announced her presence to him. "Miss me baby?"
"err sure, always do." With those words, she pounced on him and began, a very public make out session.
"Oh get a room Black!" Louisa grinned, mischievously at him, as Sarah made a bee line for Remus. Erica broke away from Sirius sharply, turning to sneer at, Louisa.
"Whats wrong? Jealous?." When Louisa replied with a tut and eye roll, Erica, very deliberately knocked Louisa's books from her hands, to the floor. Bending down and collecting the books, Louisa was handed one. Taking the book, she followed the hand, up to the handsome face of Regulus.
"My brothers never had much taste in girlfriends." Giggling, Louisa took his hand, and allowed him to pull her to her feet. Both grinned slyly at each other, Louisa blushing slightly.
"Aw look Siri, Nightshade, nabbed herself, the lesser Black brother." Louisa turned to glare at Erica, only to notice the raised eye brows of Sirius and her friends. Blushing furiously Louisa dropped, Regulus hand, having just realised that they had been, holding hands the whole time. Muttering her thanks and shooting him a playful glance, Louisa was first to enter the class room.
Taking her usual seat, she noticed a note that was pinned to the underside of the desk. Reaching down for it she, saw that it had her name scrawled across the front. Opening it silently, she began to read the note, as Professor McGonagoll started the lesson.
To my Lioness,
Bored senseless today, and cannot stop thinking about you. Meet me tonight on the third floor , next to the bronze suit of armor. Around nine thirty. Cannot wait to see you. Miss you.
R.A.B.
That night at around nine thirty, Louisa made her way to the bronze suit of armor, on the third floor. Reaching the armor she looked around the corridor for any sign of Regulus. Suddenly a hand clamped over her mouth, and gently pulled her into the open, broom cupboard. Soft lips pushed against, her own, in a hungry kiss. Louisa sighed into the kiss and relaxed, against the familiar form of Regulus.
"Miss me then?" his voice full of teasing.
"What do you think?" but before he could answer, Louisa had wound her arms around his neck, and pushed him back against the wall, continuing the hungry kiss of moments before. They must have been there a hour or more, although it felt like minuets. So wrapped up in each other that they did not hear the foot steps, of two prefects, stop outside the cupboard.
Suddenly light flooded the cupboard, and the two broke apart, slightly breathless, and red faced. Louisa and Regulus stared at the shocked looking, Bellatrix Black and Severus Snape. Clearing his throat, Snape spoke in an unnervingly calm voice. "I believe that it is after hours, and you should both be in your respective houses." Amusement twinkling in his black eyes.
"Well, well lookey what, ickle cousin, Regy caught himself!" cackled Bellatrix.
"Is they're a problem, Bella?" Regulus's voice was calm, but deadly as he addressed his cousin.
"Oh not at all! I just can't believe, you would nab yourself a Gryffindor!" more cackling. "always thought, Sirius was the one, to chase after mudbloods! I am sure aunt Walburga will be proud." Sneered Bellatrix.
Sensing the rage in Louisa, at hearing the word mudblood, Regulus gave her hand a reassuring squeeze. "not that it's your business Bella, but Louisa is pure blood. My mother has nothing to worry about. Now are you going to hand out our punishment, so we can get back to our houses?"
"Detention and ten points each, seems appropriate."said Snape as he cut off Bellatrix.
Pulling an angry Louisa in tow, Regulus made his way down the corridor and out of sight of his cousin. They walked in silence for five minuets before, Louisa realised that he was taking her back to her common room.
"You don't have to ..."
"Yes I do. My cousin is insane enough to follow you and hex you."
Gratitude filled Louisa, as he continued to walk her, to Gryffindor tower. "So much for people finding out on our terms."
"hm what do you want to do? Bellatrix will, undoubtedly tell my entire house and thus the whole school."
Louisa took time to think, "Meet me in the endurance hall in the morning, we will go into breakfast together, it's as close to our terms as we are going to get."
Stopping outside the portrait hole, Regulus pulled Louisa into a hug, and then another hungry kiss. "can't wait to see every-bodies faces in the morning." Smirking he gave her one last kiss, before turning and heading back to his own common room.