How to masturbate discreetly?

I'd say I don't get horny that often (not as often as I like :/), but when I do, I WANT to be able to masturbate someway somehow. Now, I live with my family and is sharing a bedroom with my sibling. Apart from obviously doing it while everyone's asleep and sneak to the bathroom every once in a while, does anyone have any other ideas/suggestions on what else I could be doing here?

( I mainly masturbate by playing with my clit ans nipples, fingering hurts most if the time, so leaving something inside me is not really an option. Also I've tried listening to audio, doesn't really work for me unfortunately :/)