What would you do??????

ok so i met this guy with my friend( Ashley) one night and then one of my other friends(amanda) met him another time and so Amanda invited him to her party and we hit it off pretty well and so right after the party he texted amanda saying omg your sister is awesome!!!! so she gave him her number....now heres the problem she has a twin sister(even tho they look nothing alike) but then since were like best friends she introduced me as her sister too and he never said names so idk who hes talking about .....and so ashley texed him but he never replyed ....and i dont really wana ask her sister that might sound bitchy.....so what should i do???????????