Raping 2hus in general is not only a foolish endeavor but one that will also most likely result in your death, crippling injury, mind being broken or other horrible things happening to you.
But don't worry for I'm here to help you with this rape guide.
Before doing anything stupid, remember Rule Number 1:
You do not need to needlessly endanger yourself, if all you want to do is a rape 2hu
For there are plenty of 2hu characters with zero potentially harmful power other than their pure bodily strength.
These 2hus are: Kosozu Motori, Renk Usami, Maribel Hearn and Hieda no Akkyu
You can rape them with the same difficulty you would rape a normal human.
But I understand that these characters are not big enough of a 'game' for some of you, so let me tell you the secrets to disabling a variety of powerful 2hus, using nothing but your intelligence and wits.
Rape tactic number 2: Lower their guards.
Requirements: The 2hu in question must be friendly to humans, a character with good alignment is the best. They also need to have a physical strength that is similar to humans.
What you gonna need: Convincing and helpless look, acting skills, a blunt non lethal object or anything that can achieve the same effect.
Characters it can be used on: Marisa Kirisame, Alice Margatroid, Shikieiki Yamaxanadu, Keine Kamishirawa,
This tactic relies entirely on exploiting the good nature of these 2hu, quite despicable, but that hardly matters when you are planning to rape somebody either way. What you need to do is dirty or even wound yourself a little to create an illusion that you are either in danger or lost in some way, then approach any of these listed 2hus and they will most likely help you and even take you into their houses to care for you wounds. But be careful with the Yama for she might be able to sense your intentions.
Once you are done with the first phase all you need to do now is neutralize the 2hu, in other words knock them out. You can achieve this via a quick and hard hit to the head, applying some sleeping pills or other similar methods.
The point is that it is going to work, for the physiology of these characters, despite wielding formidable powers are essentially the same as a humans, unless you were stupid enough to visit Keine on a full moon, a good hard hit should take out any of them.
Tactic number 3:
Do not rape at night, seriously just don't.
Most carnivorous youkai are active during night, gain a boost to their power and have much sharper senses than you can ever hope to match in the veil of darkness. If you want to rape a youkai, always do it during the day.
Tactic number 4: Use their loved ones against them
Requirements: The 2hu in question must have another 2hu that is precious to her
Applicable on: Ran Yakumo, Satori Komeiji, Aki Sisters, Fujiwara no Mokou, etc.
As you might have guessed it, this tactic relies on exploiting the 2hus feelings for someone they love, by kidnapping and then ransoming them.
However as you are just a mere normal human, even kidnapping those 2hus might be a hard or even impossible task.
But there is a catch, you do not actually need to kidnap anybody, you just need to create the illusion of kidnapping.
Chen and Komeiji: Just play/befriend and invite them to your house to play, then go to Ran/Satori and lie that you kidnapped them, proceed into ransom rape scene. But be careful to hide your thoughts from the Satori, or your plan will be ruined and you will most likely die a horrible death.
Keine: Apply tactic number 2 and call Mokou
Aki sisters: Very weak for gods and with insignificant power, just approach one during harvest and put her into a sack when she is not expecting it.