`` go drinking with my sister and you 'll end up with one whether you like it or not , '' i mutter wryly , but inside i 'm mentally taking inventory of ashton 's tattoos , ones i 've seen sober and the other ones that i somehow remember-a bird on the inside of his right forearm , the chinese script on his right shoulder , the celtic symbol over his left pectoral , irish on his butt ... and my face is burning again .