The most important thing is persons capacity to understand relationships, sex and it shouldnt involve grooming. In that case, if its slowburn with no grooming, 16 x 20 can work. And if 35 ıs taking advantage of 20's naievety, thats grooming and isnt acceptable.
16 and 20…4 years gaps. But because he’s a minor…it’s unacceptable.
Meanwhile, me reading a 20 and 35 year old BL with no issues…
I feel guilty.