Welcome to EI star90
First off, brothels are out of the question as they are illegal. The majority of the ladies have lovely apartments and will see you there — only the two of you. You could book a hotel and go for a call out option but that will incur additional expense.
I would suggest you do your homework first — read the reviews — perhaps pick a lady who is on the forums and PM her explaining your situation. She will put you at ease and it will be easier for you when you meet her.
Don't be panicked — these ladies are totally professional and will really look after you. You won't be the first virgin they have met