She used to do modelling / adult videos and while on the chubby side so not really to my taste always had excellent reviews / feedback both for reliability and performance. I didn't know she was now doing 121 with all and sundry plus wonder if the professional industry does since that would be bareback. Porn stars who escort are generally frowned upon due to the risks of bringing STD's into what should be a closed circle ........
Given the going rate for FS with anyone with a good reputation seems to £120/hr (£2 / minute) hardly surprising she is asking £140 but if you did book her the risk of poor service is low. Only you can decide if for you VFM or not.