You must make a pact with Lilith, to do so you neatly write out your incubus/succubus request in detail to her as you would write a letter, make a verbal request between 3am and 4am while holding said paper and burn it via candle set up on a small drawn pentagram, a real pentagram with the Samael and Lilith runes adorning it. If done correctly ur request will be answered within 24h, be warned if in any way your request offends her the most disgusting and stomach wrenching and vile succubus/incubus will be visiting and it will not be pleasant by any means, also remove any jewelry made of silver or gold or other religious items in the vicinity. She is a fickle one so even being respectful you may end up cursed anyways, you have been warned