1- After a run of bad luck, Leprecailín Róisín embraces the tradtional Irish remedy for all of life's miseries; pissing off to the pub to drown her sorrows. When a bar patron tries to strike up a conversation, Róisín tries to wrangle a free pint in exchange for a "lucky kiss".
2- Happening upon the luckless Leprecailín again sometime later, our protagonist learns that the "lucky kiss" led to a bizarre reversal of fortune for Róisín, and now the wily Irish lass plans to make the most of it. After all, she needs to refill that pot of gold somehow...
3- Surprisingly, Róisín's "get rich quick" scheme actually turns out to be viable, and she soon decides to invest in some proper "advertising". While this has the desired effect, it also leads to some misunderstandings about exactly what kind of "services" she's offering...
4- As Róisín starts expanding into other ventures and earns a reputation as an entertainer available for anyone to hire (as long as they need a scantily-clad redhead), her selection of "services" also begins to broaden to accommodate her clients; provided they pay extra...
5/6- The Limerick of "Barbie O'Gill":
"There once was a cailín called Róisín, Who lost all her gold on the race scene. To make a quick buck, She sold kisses for luck, And ended a well-endowed fuck-machine!"
The best part of this for me is that this isn't a curse or corruption or anything like that. Everything that happens to this girl is a conscious, informed and willing choice on her part. Best of all, in the end our insert character gets a piece because HE TREATED HER NICELY.