(NOTE, THEY ARE SIBLINGS)

You were good friends with russia and soviet.. well more than friends. One late evening you were cuddling with Russia  at their house when the door suddenly swung open, it was soviet, he suddenly went over to the bed and picked you up

Russia : I wasn't done with her you know! Soviet: you had your fun, now it's my turn

And before you know it the two were fighting, Soviet holding you close to his chest while Russia is obviously displeased that he took you away from him