Merlin looked down at his cup because he still couldn't look Zach in the eye regardless of how he was trying to reassure him. He huddled around his cup somehow, his finger playing around the lip.
"Apart from the fact that it can't be wanted-" Merlin started, because why would Zach really want to do that with him? "-I won't want it. I don't want it... my first time... to be a one night thing." It was a little embarassing to admit, but he still felt he owed it to Zach. "I've Seen more unlikely things happen." he added.