I require a deposit in the form of an Amazon voucher upon approach with your email. It doesn't have to be much. It's the effort that shows you are a legitimate playmate and not one of those pesky time wasters we occasionally complain about!
Vouchers from £1 here...
https://www.amazon.co.uk/Amazo...
Then send me an introductory email. What you like in session, any health concerns, hard limits. Send dates and times that would suit you and then we are off!