It can produce nsfw/sfw content but you may need to use the correct tag in order to get sfw content without one of your character going around naked :p
tag such as:
rating_safe
rating_explicit (in negative prompt)
Non exhaustive list of characters available with pony diffusion V6 XL:
https://docs.google.com/spreadsheets/d/1m2W-pZEvHuEpfHcNHrxCSr-Aw1mgtUUYho6sz9LChEA/edit#gid=0
(Spreadsheet by Marusame)
You can use the lora for merge, you don't even need to credit me but you can't resell it or sell the merge.