Sheep — Introducing New Lamb

Hopefully this is posted in the right spot — I have 4 yearling sheep. 3 ewes and 1 wether. The wether and his sister were bottle lambs but all are friendly although it was a some rough playing when the other 2 ewes were introduced. Partly I think it was also my two didn't know what the other sheep were as they were separated from the flock basically at birth by the farmer who originally had them. Well come this lambing season I'm really looking to add another lamb to the flock. I want some color instead of just white and I would really like another little boy (he would be surgically snipped by the vet when the time came). Can multiple wether's live together ...? My current wether is always glued to my hip and loves being loved on he even gets jealous if I pay too much attention to the girls.

I wouldn't just toss the new lamb in. I'm setting about to get some corral panels to attach to their shed ANY sort of info is helpful. All I can find info on is goats.