Words That Rhyme With "Stepsister" :
2 syllables:
bister, bistre, blister, clyster, glister, klister, lister, mister, sister, twister
3 syllables:
agister, demister, depeter, enlister, Exeter, register, resister, resistor, subsister, thermistor, transistor, varistor
4 syllables:
deregister, enregister, polyhistor