Sparkus has said it all, a good B2B is a full on body slide, this is lacking in a lot of the SP's
So an SP that will resolutely refuse more than sliding over you.
Our resident expert Tantraman's catalogue surely has some candidates for you, and he's not one to break the bank for his relief.
Hang on, Lora doesn't do slides right? So something like Karina from Inverness Terrace days just without the 'tude and the bristly mons? A few of that place's transients were quite good, sadly none but the most merc could be pursuaded to stick around.
You're really wanting a soapland cutie.
If you're insisting on a "looker" under 35 then the self-professed "Tantric" specialists <cough> "Bullshit!"<cough> who do indeed charge over the odds but less than 200 are easy to find.
If you're insisting on matching Lora's (former) chebs then that a whole other gravitic well. Although some of the Latin mamas might work if you're (very) sturdy and get a decent mat or bed.
But I'd take my money to one of the Thai agency girls and give them some instruction or indeed any promisingly reviewed SP under 150 ph of any "flavour" to suit your budget. I quite like the idea of a fully soaped hairy growler mopping silkenly up and down every inch of me under the needful grinding of a horny MILF, it wouldn't be just the Nuru frothing.
In her heyday before CoVID Hannah @ Skyline would've been a good candidate, although she's apparently restricted her services now you might still get just slides out of her, I haven't seen her in a long while. (Oh for Nikki if you could train her and Anna even further back.)
If you're au fait with middle-aged Chinese rural rubbers then Tina or Kelly could be quite entertaining @ Elverson. There was another lass that passed thru there, I think I mentioned in the mini-thread, who was actually quite agile with her sliding just a shame about the abrupt service and language barrier.
Maybe some of the more accommodating ladies around the Sutton parlours, you might be able to charm a YMMV inclusive if they're sweet on you or perhaps provide the preferred lube, sheeting and tip an extra 10-20 for their indulgence.
If only we could find Fiona formerly at ORBS, The Cut and Tolworth.
West London? Hammersmith or Acton and beyond, must be some possibles out that way.