two choices here. Tough it out until legs have a little colour. Cheat. not all fake tans leave you day glo orange. Don't know why this would be but life is strange, as we all know.
Rule 1 Buy one that makes you go pale tan. Rule 2 Exfoliate before applying [nearly wrote defoliate, but that is something different, and I think requires heavy duty weedkillers if not napalm] 3. THEN apply fake tan in a thin even layer [more isn't better]. 4. Overnight ideally so any streaks can be dealt with next day. 5. Deal bravely with smell [even the expensive stuff smells a little]
PS cannot complain of xh's taste in nightwear for me - Italian real silk satin. Still fleece or flannel pjs have their own charm, and you can spill coffee on them.