Chat I can’t decide

There’s a bl story I read and there’s a sex scene where their at their like third round or so and the bottom tells the top to stop but after the top caresses his skin a bit he gets hard again and then again after the bottom says he’s tired another caress from the top makes him hard again (he doesn’t even touch his dick just his body and he gets hard ?…) and soon after it’s said the bottom enjoyed it so much that he thought he could die. This probably doesn’t make sense but the entire chapter is the bottom feeling tired round after round and still getting hard and it keeps being described how vulnerable he is to pleasure??? So I’m confused whether to label it dub con it could be I’m being sensitive… (I mean I know it’s fiction I just wanna know if I’m not the crazy one for thinking this )