Given how things were going with the two of them, well for Zach with both of them...so far independently (but together was a delicious delicious thought), Zach had assumed it was all good and such. It wasn't like Fletcher had stopped shagging Zach, though he didn't know when the two of them had...officially become something. Zach was happy for them and quite happy that it had happened in a way that still included getting shagged quite well. Honestly, he'd have been happy to get treated as a ... sort of living sex toy in their minds. He wasn't dating them or anything.
"I'd like it if he did," Zach nodded, "I've got a bit of a weakness for Italian men." He smiled at a few very very good memories related to Italian men. It wasn't just that though. Tiberius had a very attractive face, body in general. And the way he lit up talking about Star Trek...there were places Zach's mind went and enjoyed going.
'Credibly' wasn't exactly a ringing endorsement, but Zach did realize it was hard to picture anyone shagging Fletcher as opposed to the other way around. And if someone were to...it didn't seem like...Tiberius was the one to, so anyway, it was likely Fletcher just didn't know. "Another cigarette?" Zach offered instead.