The period from first contact to first cash request could be a few days or a few months but regardless how long you've "known" the person, a request for money is a scam.
They do not ask for money for a ticket or visa but instead send you a scanned visa as “proof”.
The photos are stunning, perhaps professionally taken or provocative, but the description of what she's looking for in a partner is vague.
It could be a scammer, often a man, using photos downloaded from the internet in the hope of sucking in as many victims as possible.
Choose a reputable dating service or agency in order to avoid being scammed this way.
You come across a profile of a young, attractive woman on an online dating site or maybe she contacts you.