Have they slept with each other yet

No

No, and they can’t even if they wanted to I think the ML‘s brain is in more damage than we think it is because he wouldn’t want to kiss him if he remembered everything and felt the same way because he can’t the dragons poisonous to anybody put the partner that the dragon wants He’d be dead. Well he wouldn’t be because I’m pretty sure the dragon also wants him, but he doesn’t know that.