Sex parties in London - getting invited using sex personals in London

Who would have thought it could be this easy? Certainly not me when I got invited to these parties. Two weeks ago I chatted with this girl Tracy. I contacted her via this sex personals London website. So after chatting with her for a while I told her I would be in London next week on a business trip and it would be nice if we could meet up. We met next monday in this bar and really hit it off good. She was really fit and firm. She asked me if I would be interested to go to this party with a couple of friends of her. Who would refuse such an offer.