for the spicy scenes, how spicy are we talking? and when can we expect them?
They'll be pretty explicit. No euphemisms here. If you're not interested in reading that sort of thing, however, you will be able to skip it.
And I don't yet know when they'll take place, exactly. Each character has their own pace, their own preferences. Elexis is pretty much down to fuck right away, whilst Penrose needs to get to know someone a little first (especially a half-feral helvling they just met on the road).
Shea is... special. If you're not actively pursuing them, it might take awhile before you'll see any action on that front. But if you are...it might be sooner than you'd think.