When my gf was around 20 she would solo travel to other cities in europe, take a hotel room there and then invite guys over for the whole trip. She would either use tinder or go to bars in slutty outfits and wait until someone hits on her.
Sometimes she would not even make it to the most famous sites of the cities.
Her maximum was four guys on one day.
You would never think she did stuff like that if you met her now.