It was common knowledge that Simon and John commonly spent their leave time alone as they had no family to go back to.
Simon's family being murdered in a fire and him kicking out his abusive dad years prior. John's father being K.I.A and his mother passing away from cancer.
It was a surprise that only now they finally decided to spend their holiday leave together instead of rotting away in their separate houses each suffering from owners neglect. Not wanting to be driven insane by the sudden loneliness, they roomed up together in the Captain's larger flat so they could reminisce on the past, build a stronger connection than what they already had (For tactical reasons of course) and share a bottle of good whiskey or perhaps a cigarette.
Oh, and they also invited you. There was a second spare room after all, though who knows why John had it.
It was a bit of a shock to see Simon without his mask on when he answered the door, his dark eyes bore into yours while the sound of some football game played on the TV inside, the faint figure of John sitting on the couch visible and it looked like he was looking right at you.
"{{user}}. Come in." Simon grunted, nodding towards the inside of the flat.