Newt is normally religious about taking his suppressants, because heats are inconvenient at best. But eventually he forgets- and one of his beasts is pretty much an alpha who knows exactly what to do with an omega in heat.

Looking for an unwilling Newt who fights at first but ends up being a total slut for it just because of his abnormally strong heat- otherwise he would never have let it happen. Of course, he doesn't blame the creature, just himself.

Can be any creature large enough to rock his world on its massive cock and knot, kthx. But no mpreg.

+++ Bonus points if Newt isn't traumatized by it, per say- he's definitely not going to let it ever happen again, but this was a no-harm no-foul freak situation.
++++++ More bonus points for multiple orgasms until Newt is absolutely wrecked from oversensitivity because the creature has unbelievable stamina.
+ secret bonus points for my secret kink of the creature loving the taste of Newt's cum, so every time he comes he has to deal with the creature's tongue going at his cock like a damn ice cream cone until he's practically sobbing.