As someone who had a similar experience, i can tell you that it doesn't feel good to be in hiragis place, no matter how much you love someone or enjoy sex with them, it is not ok that someone doesn't stop if they are hurting you and making you cry. This sort of things can cause trauma for life and break a relationship. I couldn't help to reply to your comment so you can be aware if you ever find yourself in a situation like this in real life, run away. Don't do it cause of love because love doesn't last forever in real life most of the times. We know is fiction and we enjoy it. We know they are gonna end together. But in real life this is not ok. Sorry for this long ass comment that no one asked for, but im concerned about some people future wellbeing in this site.
Thanks for sharing your experiences too, i get what you say and you are right.However Shizu is %100 my type with both looks and character,he is the one for me among all those other charaters in this and even all other mangas , if i ever find someone like him in real life, i would run away with him and never look back.I hope what i'm tring to say reaches to you, you probably don't want me to run away with him but well ahahahaah i can't help it, let me have it in my fantasy at least, like i said before it is totally my personal choice.

So it seems like there is a little confusion,the thing is he literally said he is like a man in desert just imagine for a second you desire something so essential for you and once you get the chance you can't stop ,especially he gived permission to him to continue whatever happens, he waited to see if Hiiragi knows what it means to be in a relationship with a man he didn't push himself on Hiiragi,we also know Shizu's personality, yeah he seems like a chill dude on the outside but on the inside storms are breaking so it was pretty obvious he is not a dude who will stop just because his partner is crying.It's my personal preference but i would definitely take Shizu over anybody, anytime and any place.