Okay uhh dont judge me, but i tried this. It's so tight. I fit 3 fingers in but it hurts. Probably cuz im a virgin. Idk why i am telling this but here i am telling it :p
@I am bi. Bimyself. then let me educate you. Even if I'm a woman and I despise an@l, the principle is still the same. The stuff they say here like "relax" is actually on point. Wherever anything penetrates you, you gotta relax all your muscles until you get used to that feeling or having smt inside. Only then you shall change anything. These typa things shouldn't hurt, so if it does, ur doing smt wrong. Also, going dry isn't a right option :D idk why manhwa men are wet asf all the time, but in reality ppl use lube or something. Now I hope I didn't educate a minor :D if my advice isn't appropriate for your age, please don't reply to me and remember it when you'll need it.