"We are in a London hotel Sunday n Monday. Looking for a hot meet. Females 21st. So lets make it a special one. Who's free n up for it xx"
I'm up for a meet
Too big an age gap.
But try OurPlace4Fun on Sunday night.
You will definitely find people there, and although it will be more guys than girls, it may work out especially if you ask for a meet there.
Good luck and happy birthday.
Al