Why download though? Tubesites abound. VPN's are cheap af. Get cheap ass VPN, watch porn. Done. Even if the vpn is sleezy who cares, you just need it to show you are in a state that doens't give a shit about those kinda laws (MA in the US doesn't have those restrictions).
Also mentioned a hoard of times, yt-dlp works (just get the latest from github). Still, it's porn. Unless it's something ultra specific that you were looking for or something rare, just hit up a tube site.