I ended up at Bangkok Thai Massage (
External Link/Members Only) on a quiet residential square in Norrmalm. Lots of research suggested that Stockholm is chokka with Thai massage places (very true) and that when you ring, as all are locked (true), they often don't let you in, fibbing and saying they're full. That wasn't true for me; I went straight in. I also had no problems being offered extras, having tried to make it clear I wanted them: stripping naked at the start, spreading my legs wide, and sighing audibly whenever a hand went near to my erogenous zones.
I didn't get the woman's name, but she was slim, medium-breasted, pretty and about 30. Wearing a black tank top and tight black trousers. The other two women I saw were dressed the same: one was cute, big-breasted and early 20s, the other much dumpier and 40-50yo. Mine covered me in a towel, but kept opening parts of me to massage - back, leg, other leg - and needlessly exposing my bum, which she touched a lot. 'Twas nice and erotic. During negotiations I felt her tight bum and breasts through her clothes to no objections. She wouldn't go lower than 300kr extra (about £40) for HR. Not bad, but I never go for HR unless I sense it will be mind-blowing, and I didn't have the sense. TBH, the tease was enjoyable enough for me.
Long story short: good place for a hand job from a hot woman, and you'll pay 300kr (30 mins massage) + 300kr (HR) = 600kr (about £80) for the pleasure.