Lysander Scamander/Hugo Weasley
Hugo always knew that living with Lysander was going to be difficult. Difficult in the sense that he would have to refrain from wanting to ravish him every time he was half or completely undressed.
When Lily turned down their offer to live with them, both Hugo and Lysander where silently thanking Merlin.
Both Lysander and Hugo had learnt a lot more about each other in their relationship. Nothing they'd learned in two years of dating even compared to how much they'd learnt about each other within two weeks of living together.
Lysander for example, Hugo very quickly learnt that Lysander had an amusing and not at all unwelcome hatred for wearing clothes.
It was a bit of a shock at first. Every time they'd walk into the flat, Lysander would fling his shirt across the room and just walk around like the King of England.
It didn't take Hugo long to realise that he'd have to get used to seeing Lysander in little to no clothing on a regular basis. It was hard for Hugo to get used to this, attribute of his boyfriend's. Mostly because he wanted to jump him every time he was in less than three layers…
It didn't really matter though because it seemed, Lysander felt the same about him.
If the hard life meant dealing with Lysander in little to no clothes every day and constant sex, everywhere… Hugo could deal with that.