Rio de Janeiro ? A kiss is just a kiss, but at Rio’s Carnival, collecting as many pecking partners as possible at one of the 650 massive street parties that hit high gear on Saturday is truly a competitive sport.

Wearing a pink bikini top, flower-print miniskirt and a face dabbed with silver glitter, Taline Pereira was not shy about getting to the heart of what drives the parties — known as “blocos” — that in some cases draw upward of 1 million people.

“I traveled thousands of kilometers to come to my first Rio Carnival,” said the 18-year-old student from Brazil’s northeast. “Of course I’m going to kiss as many boys as possible.”

Yet Brazilians don’t want anyone to get the wrong idea about the widespread kissing known as “ficar,” which literally means “to stay.” It is an innocent game, they say, in which touching a woman anywhere outside the small of her back draws a red card — if not a slap.

Like the most intricate of courtship rituals, it involves rules and subtle, nonverbal cues that an ambitious man or woman must understand to have a successful outing — defined by Pereira as “maybe kissing 12 boys — or just one if he is a really good kisser.”

There are no winners, official or otherwise, though many play for bragging rights.

Informal polling found members of both sexes claiming to have kissed more than 10 partners at least once during Carnival.

Rafael Salathiel, 18, standing with a group of pals at a Friday bloco aptly named “Come to me, I’m easy,” said he has a long history of “kissing as many girls as I want during Carnival.”

For most of the 700,000 tourists who have invaded Rio, the blocos are the focus of Carnival leading up to the flamboyant samba parades today and Monday.

Each has its own character. Some are for journalists, others attract a gay crowd, many see a strong teenage contingent and still others are for young children.

But all — minus, perhaps, the bloco for youngsters and one just for dogs and cats — include an abundance of beer, a dire lack of clothing and rampant canoodling.

While Brazil’s government proudly announced it would hand out 55 million condoms for Carnival, there were no warnings issued for contagious diseases contracted by kissing.