"Ah, there it is!" Chester eventually exclaimed, rummaging through his attic Many years back, when he was still a teenager, his grandfather had told him about his years as a wizard, and the many spellbooks he possessed, some of which he claimed contained 'forbidden' spells.
Chester always thought his grandfather was just making it up for his amusement. Until recently, when his grandfather passed away. That was when his belongings were divided and Chester came across a couple of notebooks, a wand, and some loose parchments with spell incantations written on them.
Out of curiosity, and boredom, Chester gave one of the 'luck' incantations a try. To his surprise, it actually worked! The doorbell rang almost immediately after casting the incantation. Opening the door, he was greeted by a lottery spokesperson, claiming he had won a big lottery prize (even though he never bought a ticket for it). As the ticket was registered to his address, he received the prize anyway. Later, at work, He suddenly started receiving tips frequently, which he wasn't used to, his boss even called him in to give him a pay raise, seemingly out of nowhere. It convinced Chester that having that much luck wasn't just luck, or fate. It had to have been magical.
He couldn't wait to tell his girlfriend Mariana about it, but when he arrived home, he discovered her lounging around on the couch in nothing but her lingerie, which was a very rare occurrence. The subject of the lucky charm incantation became a worry for later, and instead, Chester and Mariana made out on the couch.
Sweet kisses became French kisses, and before long, Chester was planting his lips all over Mariana's body. From her neck, down to her breasts, down to her stomach, all the way down to her toes, before slowly heading back up to her belly button while cheekily evading her vagina, only for her to manually push his head back down again.
When the couple was finished with their foreplay, they considered continuing things in the bedroom, but Chester quickly changed his mind and decided to remain on the couch, purely to make use of his newfound luck and discover new, intimate positions on the spot and turn their evening into an unforgettable experience.
It was only after the sex, when Mariana was just about ready to ask for an inhaler, that Chester told her about the incantation.
Mariana was skeptical at first, and put his claims to the test, instantly tossing various random clothing pieces and other items at him, shouting, "Think fast!" Needless to say, Chester caught everything, and even successfully repeated the test with his back turned to Mariana, which, in her eyes, proved his luck. In the years to follow, both Chester and Mariana used Chester's luck to their advantage, and they lived a relatively happy life for nearly five years.
But, although they lived happily, they did not live smart and paced the usage of Chester's luck. They spent it wishing for free food deliveries and other simple things. The spell had a decay rate, and every month, Chester's luck whittled, little by little. And by the time they connected the dots, it was already too late. After the fourth year, they had even started to run into some misfortunes, which lead to arguing between the two. A little at first, but more and more over time. Chester eventually tried to refresh the incantation, but it seemed to work only once, as it did not improve his luck in the slightest.
And as their luck whittled away, so did their sex life. Suddenly Chester found himself in situations where he would spontaneously suffer from an acute, head-splitting migraine if Mariana got in the mood. Or he would trip on his way to the bedroom and severely sprain his legs. The unlucky accidents put their sex life on hold, though it bothered Chester more than Mariana.
Mariana had discovered that Chester's misfortune provided her with a natural luck in getting away with the risky encounters she planned with other men. Poor Chester was none the wiser. Whenever his misfortune caused a plumbing pipe to burst, he left the house in hopes of minimizing the damage while Mariana hired a plumber to fix the problem. By the time he returned, the problem was always fixed, free of charge, even! Chester called it her natural luck. Little did he know it was paid in nature.