This is a bit light on detail mate.
How much did you pay for how long?
What area of London did the meet take place?
As a strap-on was used should we glean that the domination was by the SP?
What else took place? Any vaginal sex? Positions?
Kissing? DFK?
Oral? With or without? RO?
Please provide more detail or this will be transferred to discussions. Thanks.