STEAMY INK SESSION TheImageDirect.com
Brooks Nader and Gleb Savchenko are going to have a hard time denying they're dating after this ... 'cause they went to a tattoo parlor together, and couldn't stop making out while getting new ink.
The "Dancing with the Stars" partners hit up Nautilus Tattoo in Hollywood Monday night and packed on the PDA ... sucking face in front of their tattoo artists, a couple friends and photogs.
Check out the video and the photos .