Both good looking curvy (not fat) busty Bulgarians working in Soho walkups (hence no photos).
Zara, mostly at 52 Greek Street, occasionally at 8 Greek Street. Sexy and can give a really good Soho service with a dash of playfulness but nowadays YMMV as she can be temperamental. A little jizz-aphobic. Hence no tit wank or even uncovered HR. Supposedly half Persian, hence the Gypsy look.
Tina, sometimes at 34 Romilly Street, sometimes at 18 Newport Court, sometimes at 2 Greens Court. Similar to Zara in looks, though a bit younger. Very sweet and can be quite tender but like Zara somewhat on the vanilla side, even for Soho.
For the most basic service at £20 for ten minutes of either penetrative sex or oral + conventional £2 maid's tip, both are good options if you are in town. The £30 sex and oral plus £2 maid's tip is a good bet for either of these. See the Soho thread for more details. Both have a couple of regular reviews as well.