Ok consider married!Jon with Jonelias.
Elias slipping Jon’s ring off while they kiss before bending him over the nearest surface. Elias leaving marks Jon desperately has to hide. Collaring Jon so tenderly and lovingly as Jon shakes from the implications of ownership. Of possession. Elias driving Jon home, Jon asking him if he wants to come in… Elias fucking Jon in the bed he shares with his spouse, making him beg and plead and whine and all for him. Jon getting pregnant, and maybe not knowing who the other parent is, or maybe knowing all too well. Jon so so afraid and Elias pulling him into his arms, hand on Jon’s stomach, because he does know, and he’s so very pleased…