Please remember: Taejun thinks Yumin is a beast, he doesn't know for sure (does not make things better) and more importantly, Yumin was doing the same thing to Teajun. Yumin drugged Teajun first (he told him it was an herbal drink for his health), and was going to get Teajun pregnant (thinking he was human) without telling him anything. Yumin's own plan just backfired on him. Yes, Taejun is a bit too forceful, but also remember, it's the 1st time he's spent his heat with anyone - I think he's overwhelmed by the hormones.

Idk man… sneaking behind his back to drug him with a heat inducer, not telling him anything even though he already knows Yumin's a beast, I'm not crazy about this… it'd be one thing if they both knew and were doing this together on purpose but it's the fact that he's deliberately keeping Yumin in the dark that's really bugging me…