The sibling bond is strange. They may annoy the hell out of you, yet you would still donate a kidney to them if needed. Despite the many bickerings the two of you had growing up, for many siblings, the bond they have with their brother or sister is the strongest they will ever establish. Friends come and go, but a brother and sister’s friendship lasts a lifetime. To celebrate and embody this unity, quite a few siblings opt to get brother and sister tattoos.