Why? Double it is £50/15m which is on par with a lot of others. Fuck, some are even charging £60/15m, and presumably getting punters (not me).
Indeed, I'd be well up for that. It's vivastreet, so we're speaking hypothetically here of course, but if a girl of true 50/15min calibre was willing to let me slam her intensely for 7 min at 25 quid, I'd call that a fucking bargain.
A shag's a shag, and it's the quality and enthusiasm of the bird, together with the chemistry you have with her that counts - not the minute-by-minute duration. Some of the most memorable bangs I've had with past girlfriends have lasted less than that - when you're both just horny as fuck, unable to rip each others clothes off fast enough, and get inside her as quick as possible. Might've been even less than 5 min all-in, but that intensity that simply wouldn't last over any longer period, more than makes up for it, and is what sticks in the wankbank.
The same goes for punting. Most of best overall punts I've had have been 15 min, or 2 pops in 30 which is essentially the same thing.
Different sex for different folks in different moods and different situations...
Out of interest does anyone actually have a proper working link to the girl in question? The one below simply re-directs to a general Edinburgh search.