It's convinient for you to have bothblogs under the same name and just seperate the content due to the lewdness. Also, don't feel shame for being a NSFW artist.
I myself am I NSFW artist and I wear it with pride. My porn atracts people but those who actually love my work stay top see the SFW in my main blog.
This is due to familiarity, the more familiar your audience is to your work, the more diverse things you can deliver to them.
For example, I can be drawing the most fucked up macro porn one day, and draw chibis and wholesome yuri the next.
Remember that you're one artist and one soul, and no matter how much effort you try to hide your NSFW stuff people will always find out it's you. So inflate your chest and wear the badge with pride.
Porn artists aren't creeps, if you're awkward and insecure well, yes, you'll look like one. Be confident in your work.