Freelance writer - should I take the following offer or not?

ٱلسَّلَامُ عَلَيْكُمْ .I got an offer from my project provider that because he does not get many sfw (safe-for-work), he can work alongside me on nsfw projects. I’ll write the clean parts and he will add the nsfw parts later by himself. Would it, or would it not be allowed, following the guidance of shariyat? Thank you.

Wasalam

May Allah bless you.
Sorry but the question is not clear. Can you provide more details of what you will be writing exactly? and for who?

Kind regards