One morning in the dogBruce au its winter and freezing cold and Barry is so cold and hes shivering. Bruce is like "ugh fine come here" and he hugs the boy close and in the morning Barry and Bruce become like father and son because Bruce is like 35
Awww!
So, if this is before the whole revolution of Dog!Bruce, Barry would be in training so he would have to wear his cage and his collar and wear no clothes. I bet it’s one of those days where Clark is gone for a few days and so Bruce and Barry are stuck in the house and since Bruce and Clark are together, Bruce has like 100x more privileges than Barry.
So in order for Bruce to cuddle with Barry, Bruce would have to leave his bed and cuddle with Barry under a blanket in the doggy bed.
Than a few days later when Clark has returned, he’s waiting for his love to join him in bed for some good love making but Bruce actually skips the bed and comes to sleep with Barry and keep him warm and safe.
From this.