Kallio district has lots of Massage parlors that provide sex services. Most of the thai massage places are between Helsinginkatu and Vaasankatu. There are also about 7 different "privaatti" (private) show places in Vaasankatu.
You will pay 20-50 euros for a show with a stripper in a private room where you are allowed to masturbate.
Find a chat partner or many partners by location or by sexual interests.
If you're new, the Lobby is a great place to get started.
There are Love Doctors (15) The Love Doctors is our room where our members team together to give each other advice on any issue related to love, sex, and relationships - come on in if you need advice or have some to give!
It is also very common to get pick-pocketed by the street prostitutes.
At the early morning wee hours street whores hang out at the front of the Forum Mc Donalds on Mannerheimintie and try to steal wallets and cellphones from the drunk people who are getting food after the Helsinki nightclubs have closed.
If you are drunk and take a street girl to your home or a hotel room.
It is also very risky as they may steal your belongings or in a worst case drug you and then steal all of your stuff.